Annotate

mod_invite/mod_invite.lua @ 6226:1b109900beae

mod_invite: Remove compatibility with 0.11
author Link Mauve <linkmauve@linkmauve.fr>
date Wed, 09 Apr 2025 19:05:06 +0200
parent 4976:75b6e5df65f9
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1 local adhoc_new = module:require "adhoc".new;
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2 local uuid_new = require "util.uuid".generate;
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3 local jid_split = require "util.jid".split;
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4 local jid_join = require "util.jid".join;
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5 local http_formdecode = require "net.http".formdecode;
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6 local usermanager = require "core.usermanager";
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7 local rostermanager = require "core.rostermanager";
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8 local tohtml = require "util.stanza".xml_escape
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9 local nodeprep = require "util.encodings".stringprep.nodeprep;
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10 local http_files = require "net.http.files";
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11 local tostring = tostring;
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13 local invite_storage = module:open_store();
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14 local inviter_storage = module:open_store("inviter");
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15
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16 module:depends"adhoc";
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17 module:depends"http";
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19 local function apply_template(template, args)
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20 return
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21 template:gsub("{{([^}]*)}}", function (k)
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22 if args[k] then
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23 return tohtml(args[k])
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24 else
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25 return k
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26 end
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27 end)
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28 end
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29
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30 function generate_page(event, token)
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31 local response = event.response;
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33 local tokens = invite_storage:get() or {};
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35 response.headers.content_type = "text/html; charset=utf-8";
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37 if not token or token == "" then
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38 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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39
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40 -- TODO maybe show a friendlier information page instead?
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41 return apply_template(template, { classes = "alert-danger", message = "No token given" })
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42 elseif not tokens[token] then
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43 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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45 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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46 end
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48 local template = assert(module:load_resource("invite/invite.html")):read("*a");
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50 return apply_template(template, { user = jid_join(tokens[token], module.host), server = module.host, token = token });
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51 end
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53 function subscribe(user1, user2)
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54 local user1_jid = jid_join(user1, module.host);
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55 local user2_jid = jid_join(user2, module.host);
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57 rostermanager.set_contact_pending_out(user2, module.host, user1_jid);
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58 rostermanager.set_contact_pending_in(user1, module.host, user2_jid);
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59 rostermanager.subscribed(user1, module.host, user2_jid);
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60 rostermanager.process_inbound_subscription_approval(user2, module.host, user1_jid);
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61 end
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62
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63 function handle_form(event)
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64 local request, response = event.request, event.response;
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65 local form_data = http_formdecode(request.body);
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66 local user, password, token = form_data["user"], form_data["password"], form_data["token"];
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67 local tokens = invite_storage:get() or {};
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68
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69 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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71 response.headers.content_type = "text/html; charset=utf-8";
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73 if not user or #user == 0 or not password or #password == 0 or not token then
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74 return apply_template(template, { classes = "alert-warning", message = "Please fill in all fields." })
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75 end
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77 if not tokens[token] then
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78 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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79 end
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81 -- Shamelessly copied from mod_register_web.
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82 local prepped_username = nodeprep(user);
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83
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84 if not prepped_username or #prepped_username == 0 then
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85 return apply_template(template, { classes = "alert-warning", message = "This username contains invalid characters." })
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86 end
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87
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88 if usermanager.user_exists(prepped_username, module.host) then
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89 return apply_template(template, { classes = "alert-warning", message = "This username is already in use." })
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90 end
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91
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92 local registering = { username = prepped_username , host = module.host, allowed = true }
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93
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94 module:fire_event("user-registering", registering);
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96 if not registering.allowed then
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97 return apply_template(template, { classes = "alert-danger", message = "Registration is not allowed." })
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98 end
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99
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100 local ok, err = usermanager.create_user(prepped_username, password, module.host);
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101
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102 if ok then
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103 subscribe(prepped_username, tokens[token]);
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104 subscribe(tokens[token], prepped_username);
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105
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106 inviter_storage:set(prepped_username, { inviter = tokens[token] });
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107
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108 rostermanager.roster_push(tokens[token], module.host, jid_join(prepped_username, module.host));
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109
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110 tokens[token] = nil;
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111
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112 invite_storage:set(nil, tokens);
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113
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114 module:fire_event("user-registered", {
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115 username = prepped_username, host = module.host, source = "mod_invite", });
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116
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117 return apply_template(template, { classes = "alert-success",
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118 message = "Your account has been created! You can now log in using an XMPP client." })
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119 else
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120 module:log("debug", "Registration failed: " .. tostring(err));
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121
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122 return apply_template(template, { classes = "alert-danger", message = "An unknown error has occurred." })
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123 end
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124 end
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125
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126 module:provides("http", {
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127 route = {
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128 ["GET /bootstrap.min.css"] = http_files.serve(module:get_directory() .. "/invite/bootstrap.min.css");
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129 ["GET /*"] = generate_page;
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130 POST = handle_form;
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131 };
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132 });
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133
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134 function invite_command_handler(_, data)
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135 local uuid = uuid_new();
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136
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137 local user, host = jid_split(data.from);
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138
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139 if host ~= module.host then
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140 return { status = "completed", error = { message = "You are not allowed to invite users to this server." }};
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141 end
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142
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143 local tokens = invite_storage:get() or {};
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144
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145 tokens[uuid] = user;
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146
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147 invite_storage:set(nil, tokens);
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148
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149 return { info = module:http_url() .. "/" .. uuid, status = "completed" };
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150 end
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151
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152 local adhoc_invite = adhoc_new("Invite user", "invite", invite_command_handler, "local_user")
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153
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154 module:add_item("adhoc", adhoc_invite);