prosody-modules
a6e97031972c
mod_invite/mod_invite.lua

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mod_invite/mod_invite.lua @ 2614:a6e97031972c

mod_invite: Remove unused arguments [luacheck]
author Kim Alvefur <zash@zash.se>
date Tue, 14 Mar 2017 04:19:26 +0100
parent 2613:2103135f1851
child 2615:efb69a260723
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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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15 local serve = module:depends"http_files".serve;
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16
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17 module:depends"adhoc";
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18 module:depends"http";
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20 local function apply_template(template, args)
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21 return
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22 template:gsub("{{([^}]*)}}", function (k)
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23 if args[k] then
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24 return tohtml(args[k])
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25 else
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26 return k
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27 end
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28 end)
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29 end
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30
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31 function generate_page(event)
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32 local request, response = event.request, event.response;
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34 local tokens = invite_storage:get() or {};
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36 local token = request.path:match("^/invite/([^/]*)$");
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38 response.headers.content_type = "text/html; charset=utf-8";
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40 if not token or not tokens[token] then
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41 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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42
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43 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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44 end
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46 local template = assert(module:load_resource("invite/invite.html")):read("*a");
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48 return apply_template(template, { user = jid_join(tokens[token], module.host), server = module.host, token = token });
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49 end
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51 function subscribe(user1, user2)
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52 local user1_jid = jid_join(user1, module.host);
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53 local user2_jid = jid_join(user2, module.host);
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54
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55 rostermanager.set_contact_pending_out(user2, module.host, user1_jid);
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56 rostermanager.set_contact_pending_in(user1, module.host, user2_jid);
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57 rostermanager.subscribed(user1, module.host, user2_jid);
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58 rostermanager.process_inbound_subscription_approval(user2, module.host, user1_jid);
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59 end
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60
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61 function handle_form(event)
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62 local request, response = event.request, event.response;
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63 local form_data = http_formdecode(request.body);
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64 local user, password, token = form_data["user"], form_data["password"], form_data["token"];
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65 local tokens = invite_storage:get() or {};
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67 local template = assert(module:load_resource("invite/invite_result.html")):read("*a");
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68
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69 response.headers.content_type = "text/html; charset=utf-8";
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71 if not user or #user == 0 or not password or #password == 0 or not token then
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72 return apply_template(template, { classes = "alert-warning", message = "Please fill in all fields." })
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73 end
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75 if not tokens[token] then
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76 return apply_template(template, { classes = "alert-danger", message = "This invite has expired." })
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77 end
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79 -- Shamelessly copied from mod_register_web.
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80 local prepped_username = nodeprep(user);
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81
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82 if not prepped_username or #prepped_username == 0 then
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83 return apply_template(template, { classes = "alert-warning", message = "This username contains invalid characters." })
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84 end
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85
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86 if usermanager.user_exists(prepped_username, module.host) then
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87 return apply_template(template, { classes = "alert-warning", message = "This username is already in use." })
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88 end
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89
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90 local registering = { username = prepped_username , host = module.host, allowed = true }
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92 module:fire_event("user-registering", registering);
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94 if not registering.allowed then
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95 return apply_template(template, { classes = "alert-danger", message = "Registration is not allowed." })
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96 end
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97
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98 local ok, err = usermanager.create_user(prepped_username, password, module.host);
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99
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100 if ok then
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101 subscribe(prepped_username, tokens[token]);
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102 subscribe(tokens[token], prepped_username);
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103
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104 inviter_storage:set(prepped_username, { inviter = tokens[token] });
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105
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106 rostermanager.roster_push(tokens[token], module.host, jid_join(prepped_username, module.host));
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107
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108 tokens[token] = nil;
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109
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110 invite_storage:set(nil, tokens);
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111
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112 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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113 else
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114 module:log("debug", "Registration failed: " .. tostring(err));
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115
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116 return apply_template(template, { classes = "alert-danger", message = "An unknown error has occurred." })
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117 end
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118 end
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119
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120 module:provides("http", {
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121 route = {
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122 ["GET /bootstrap.min.css"] = serve(module:get_directory() .. "/invite/bootstrap.min.css");
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123 ["GET /*"] = generate_page;
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124 POST = handle_form;
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125 };
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126 });
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127
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128 function invite_command_handler(_, data)
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129 local uuid = uuid_new();
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130
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131 local user, host = jid_split(data.from);
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132
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133 if host ~= module.host then
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134 return { status = "completed", error = { message = "You are not allowed to invite users to this server." }};
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135 end
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136
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137 local tokens = invite_storage:get() or {};
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138
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139 tokens[uuid] = user;
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140
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141 invite_storage:set(nil, tokens);
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142
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143 return { info = module:http_url() .. "/" .. uuid, status = "completed" };
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144 end
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145
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146 local adhoc_invite = adhoc_new("Invite user", "invite", invite_command_handler, "user")
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147
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148 module:add_item("adhoc", adhoc_invite);