prosody-modules
78efd064aef3
mod_invite/mod_invite.lua

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mod_invite/mod_invite.lua @ 2562:78efd064aef3

mod_firewall: Rename variables to avoid shadowing #luacheck
author Matthew Wild <mwild1@gmail.com>
date Fri, 24 Feb 2017 09:49:30 +0000
parent 2240:967ba25edf58
child 2613:2103135f1851
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 http_urlencode = require "net.http".urlencode;
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7 local usermanager = require "core.usermanager";
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8 local rostermanager = require "core.rostermanager";
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9 local tohtml = require "util.stanza".xml_escape
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10 local nodeprep = require "util.encodings".stringprep.nodeprep;
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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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16 local serve = module:depends"http_files".serve;
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17
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18 module:depends"adhoc";
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19 module:depends"http";
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21 local function apply_template(template, args)
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22 return
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23 template:gsub("{{([^}]*)}}", function (k)
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24 if args[k] then
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25 return tohtml(args[k])
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26 else
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27 return k
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28 end
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29 end)
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30 end
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32 function generate_page(event, display_options)
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33 local request, response = event.request, event.response;
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35 local tokens = invite_storage:get() or {};
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37 local token = request.path:match("^/invite/([^/]*)$");
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39 response.headers.content_type = "text/html; charset=utf-8";
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41 if not token or not tokens[token] then
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42 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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44 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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45 end
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47 local template = assert(module:load_resource("invite/invite.html")):read("*a");
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49 return apply_template(template, { user = jid_join(tokens[token], module.host), server = module.host, token = token });
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50 end
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52 function subscribe(user1, user2)
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53 local user1_jid = jid_join(user1, module.host);
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54 local user2_jid = jid_join(user2, module.host);
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56 rostermanager.set_contact_pending_out(user2, module.host, user1_jid);
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57 rostermanager.set_contact_pending_in(user1, module.host, user2_jid);
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58 rostermanager.subscribed(user1, module.host, user2_jid);
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59 rostermanager.process_inbound_subscription_approval(user2, module.host, user1_jid);
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60 end
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62 function handle_form(event, display_options)
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63 local request, response = event.request, event.response;
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64 local form_data = http_formdecode(request.body);
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65 local user, password, token = form_data["user"], form_data["password"], form_data["token"];
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66 local tokens = invite_storage:get() or {};
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68 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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70 response.headers.content_type = "text/html; charset=utf-8";
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72 if not user or #user == 0 or not password or #password == 0 or not token then
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73 return apply_template(template, { classes = "alert-warning", message = "Please fill in all fields." })
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74 end
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76 if not tokens[token] then
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77 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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78 end
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80 -- Shamelessly copied from mod_register_web.
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81 local prepped_username = nodeprep(user);
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82
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83 if not prepped_username or #prepped_username == 0 then
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84 return apply_template(template, { classes = "alert-warning", message = "This username contains invalid characters." })
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85 end
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86
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87 if usermanager.user_exists(prepped_username, module.host) then
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88 return apply_template(template, { classes = "alert-warning", message = "This username is already in use." })
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89 end
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91 local registering = { username = prepped_username , host = module.host, allowed = true }
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93 module:fire_event("user-registering", registering);
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94
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95 if not registering.allowed then
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96 return apply_template(template, { classes = "alert-danger", message = "Registration is not allowed." })
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97 end
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98
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99 local ok, err = usermanager.create_user(prepped_username, password, module.host);
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100
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101 if ok then
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102 subscribe(prepped_username, tokens[token]);
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103 subscribe(tokens[token], prepped_username);
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104
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105 inviter_storage:set(prepped_username, { inviter = tokens[token] });
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106
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107 rostermanager.roster_push(tokens[token], module.host, jid_join(prepped_username, module.host));
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108
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109 tokens[token] = nil;
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110
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111 invite_storage:set(nil, tokens);
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112
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113 return apply_template(template, { classes = "alert-success", message = "Your account has been created! You can now log in using an XMPP client." })
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114 else
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115 module:log("debug", "Registration failed: " .. tostring(err));
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116
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117 return apply_template(template, { classes = "alert-danger", message = "An unknown error has occurred." })
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118 end
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119 end
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120
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121 module:provides("http", {
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122 route = {
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967ba25edf58 mod_invite: Serve CSS correctly
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123 ["GET /bootstrap.min.css"] = serve(module:get_directory() .. "/invite/bootstrap.min.css");
2058
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124 ["GET /*"] = generate_page;
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125 POST = handle_form;
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126 };
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127 });
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128
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129 function invite_command_handler(self, data, state)
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130 local uuid = uuid_new();
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131
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132 local user, host = jid_split(data.from);
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133
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134 if host ~= module.host then
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135 return { status = "completed", error = { message = "You are not allowed to invite users to this server." }};
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136 end
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137
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138 local tokens = invite_storage:get() or {};
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139
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140 tokens[uuid] = user;
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141
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142 invite_storage:set(nil, tokens);
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143
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144 return { info = module:http_url() .. "/" .. uuid, status = "completed" };
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145 end
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146
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147 local adhoc_invite = adhoc_new("Invite user", "invite", invite_command_handler, "user")
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148
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149 module:add_item("adhoc", adhoc_invite);