prosody-modules
b059a3fb2a58
mod_invite/mod_invite.lua

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mod_invite/mod_invite.lua @ 3549:b059a3fb2a58

Update modules using mod_http_files to serve files for change in Prosody trunk See commits in Prosody: f1594893998f afc48785f738 a39f3681d685 c93fdec624c7
author Kim Alvefur <zash@zash.se>
date Fri, 05 Apr 2019 18:57:51 +0200
parent 3480:5911030a1a66
child 3552:5370bc374c83
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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 tostring = tostring;
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12 local invite_storage = module:open_store();
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13 local inviter_storage = module:open_store("inviter");
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14
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15 local serve;
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16 if not pcall(function ()
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17 local http_files = require "net.http.files";
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18 serve = http_files.serve;
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19 end) then
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20 serve = module:depends"http_files".serve;
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21 end
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22
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23 module:depends"adhoc";
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24 module:depends"http";
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26 local function apply_template(template, args)
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27 return
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28 template:gsub("{{([^}]*)}}", function (k)
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29 if args[k] then
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30 return tohtml(args[k])
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31 else
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32 return k
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33 end
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34 end)
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35 end
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37 function generate_page(event)
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38 local request, response = event.request, event.response;
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40 local tokens = invite_storage:get() or {};
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42 local token = request.path:match("^/invite/([^/]*)$");
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44 response.headers.content_type = "text/html; charset=utf-8";
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46 if not token or not tokens[token] then
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47 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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49 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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50 end
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52 local template = assert(module:load_resource("invite/invite.html")):read("*a");
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54 return apply_template(template, { user = jid_join(tokens[token], module.host), server = module.host, token = token });
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55 end
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57 function subscribe(user1, user2)
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58 local user1_jid = jid_join(user1, module.host);
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59 local user2_jid = jid_join(user2, module.host);
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61 rostermanager.set_contact_pending_out(user2, module.host, user1_jid);
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62 rostermanager.set_contact_pending_in(user1, module.host, user2_jid);
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63 rostermanager.subscribed(user1, module.host, user2_jid);
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64 rostermanager.process_inbound_subscription_approval(user2, module.host, user1_jid);
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65 end
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66
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67 function handle_form(event)
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68 local request, response = event.request, event.response;
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69 local form_data = http_formdecode(request.body);
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70 local user, password, token = form_data["user"], form_data["password"], form_data["token"];
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71 local tokens = invite_storage:get() or {};
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73 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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75 response.headers.content_type = "text/html; charset=utf-8";
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77 if not user or #user == 0 or not password or #password == 0 or not token then
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78 return apply_template(template, { classes = "alert-warning", message = "Please fill in all fields." })
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79 end
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81 if not tokens[token] then
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82 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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83 end
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84
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85 -- Shamelessly copied from mod_register_web.
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86 local prepped_username = nodeprep(user);
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87
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88 if not prepped_username or #prepped_username == 0 then
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89 return apply_template(template, { classes = "alert-warning", message = "This username contains invalid characters." })
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90 end
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91
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92 if usermanager.user_exists(prepped_username, module.host) then
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93 return apply_template(template, { classes = "alert-warning", message = "This username is already in use." })
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94 end
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96 local registering = { username = prepped_username , host = module.host, allowed = true }
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97
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98 module:fire_event("user-registering", registering);
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99
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100 if not registering.allowed then
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101 return apply_template(template, { classes = "alert-danger", message = "Registration is not allowed." })
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102 end
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103
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104 local ok, err = usermanager.create_user(prepped_username, password, module.host);
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105
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106 if ok then
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107 subscribe(prepped_username, tokens[token]);
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108 subscribe(tokens[token], prepped_username);
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109
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110 inviter_storage:set(prepped_username, { inviter = tokens[token] });
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111
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112 rostermanager.roster_push(tokens[token], module.host, jid_join(prepped_username, module.host));
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113
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114 tokens[token] = nil;
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115
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116 invite_storage:set(nil, tokens);
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117
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118 module:fire_event("user-registered", {
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119 username = prepped_username, host = module.host, source = "mod_invite", });
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120
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121 return apply_template(template, { classes = "alert-success",
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122 message = "Your account has been created! You can now log in using an XMPP client." })
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123 else
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124 module:log("debug", "Registration failed: " .. tostring(err));
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125
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126 return apply_template(template, { classes = "alert-danger", message = "An unknown error has occurred." })
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127 end
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128 end
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129
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130 module:provides("http", {
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131 route = {
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132 ["GET /bootstrap.min.css"] = serve(module:get_directory() .. "/invite/bootstrap.min.css");
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133 ["GET /*"] = generate_page;
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134 POST = handle_form;
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135 };
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136 });
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137
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138 function invite_command_handler(_, data)
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139 local uuid = uuid_new();
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140
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141 local user, host = jid_split(data.from);
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142
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143 if host ~= module.host then
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144 return { status = "completed", error = { message = "You are not allowed to invite users to this server." }};
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145 end
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146
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147 local tokens = invite_storage:get() or {};
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148
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149 tokens[uuid] = user;
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150
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151 invite_storage:set(nil, tokens);
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152
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153 return { info = module:http_url() .. "/" .. uuid, status = "completed" };
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154 end
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155
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156 local adhoc_invite = adhoc_new("Invite user", "invite", invite_command_handler, "user")
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157
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158 module:add_item("adhoc", adhoc_invite);