prosody-modules
ada7a0c7221c
mod_adhoc_groups/mod_adhoc_groups.lua

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mod_adhoc_groups/mod_adhoc_groups.lua @ 3247:ada7a0c7221c

mod_pubsub_text_interface: Generate a stanza id for replies This may be needed for some clients that de-duplicate messages based on stanza id.
author Kim Alvefur <zash@zash.se>
date Mon, 20 Aug 2018 22:52:20 +0200
parent 2870:d8325dfb6a13
child 4030:0d7293c37e1a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 local rostermanager = require"core.rostermanager";
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2 local jid_join = require"util.jid".join;
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3 local jid_split = require"util.jid".split;
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4 local host = module.host;
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5 local st = require "util.stanza";
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6
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7 local groups = module:open_store("groups");
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8 local memberships = module:open_store("groups", "map");
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9
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10 module:depends("adhoc");
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11
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12 local adhoclib = module:require "adhoc";
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13 local dataform = require"util.dataforms";
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14 local adhoc_inital_data = require "util.adhoc".new_initial_data_form;
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15
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16 -- Make a *one-way* subscription. User will see when contact is online,
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17 -- contact will not see when user is online.
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18 local function subscribe(user, contact)
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19 local user_jid, contact_jid = jid_join(user, host), jid_join(contact, host);
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20
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21 -- Update user's roster to say subscription request is pending...
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22 rostermanager.set_contact_pending_out(user, host, contact_jid);
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23 -- Update contact's roster to say subscription request is pending...
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24 rostermanager.set_contact_pending_in(contact, host, user_jid);
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25 -- Update contact's roster to say subscription request approved...
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26 rostermanager.subscribed(contact, host, user_jid);
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27 -- Update user's roster to say subscription request approved...
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28 rostermanager.process_inbound_subscription_approval(user, host, contact_jid);
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29
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30 -- Push updates to both rosters
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31 rostermanager.roster_push(user, host, contact_jid);
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32 rostermanager.roster_push(contact, host, user_jid);
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33
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34 module:send(st.presence({ type = "probe", from = user_jid, to = contact_jid }));
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35 end
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36
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37 local create_form = dataform.new {
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38 title = "Create a new group";
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39 {
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40 type = "hidden";
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41 name = "FORM_TYPE";
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42 value = "xmpp:zash.se/adhoc_groups#new";
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43 };
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44 {
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45 type = "text-single";
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46 name = "group";
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47 label = "Name of group";
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48 required = true;
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49 };
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50 };
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51
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52 local join_form = dataform.new {
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53 title = "Pick the group to join";
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54 {
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55 type = "hidden";
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56 name = "FORM_TYPE";
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57 value = "xmpp:zash.se/adhoc_groups#join";
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58 };
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59 {
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60 type = "list-single";
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61 name = "group";
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62 label = "Available groups";
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63 required = true;
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64 };
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65 };
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66
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67 local function _(f)
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68 return function (fields, form_err, data)
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69 local ok, message = f(fields, form_err, data);
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70 if ok then
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71 return { status = "completed", info = message };
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72 else
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73 return { status = "completed", error = { message = message} };
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74 end
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75 end
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76 end
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77
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78 module:add_item("adhoc",
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79 adhoclib.new("Create group",
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80 "xmpp:zash.se/adhoc_groups#new",
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81 adhoc_inital_data(create_form,
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82 function ()
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83 return {};
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84 end,
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85 _(function (fields, form_err, data)
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86 local user = jid_split(data.from);
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87 if form_err then
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88 return false, "Problem in submitted form";
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89 end
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90
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91 local group, err = groups:get(fields.group);
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92 if group then
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93 if err then
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94 return false, "An error occurred on the server. Please try again later.";
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95 else
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96 return false, "That group already exists";
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97 end
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98 end
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99
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100 if not groups:set(fields.group, { [user] = true }) then
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101 return false, "An error occurred while creating the group";
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102 end
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103
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104 return true, ("The %s group has been created"):format(fields.group);
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105 end)), "local_user")); -- Maybe admins only?
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106
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107 module:add_item("adhoc",
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108 adhoclib.new("Join group",
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109 "xmpp:zash.se/adhoc_groups#join",
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110 adhoc_inital_data(join_form,
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111 function ()
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112 local group_list = {};
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113 for group in groups:users() do
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114 table.insert(group_list, group);
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115 module:log("debug", "Group: %q", group);
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116 end
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117 table.sort(group_list);
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118 return { group = group_list };
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119 end,
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120 _(function (fields, form_err, data)
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121 local user = jid_split(data.from);
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122 if form_err then
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123 return false, "Problem in submitted form";
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124 end
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125
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126 local group, err = groups:get(fields.group);
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127 if not group then
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128 if err then
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129 return false, "An error occurred on the server. Please try again later.";
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130 else
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131 return false, "No such group";
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132 end
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133 end
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134 if group[data.from] then
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135 return false, "You are already in this group.";
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136 end
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137
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138 if not memberships:set(fields.group, user, true) then
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139 return false, "An error occurred while adding you to the group";
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140 end
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141
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142 for member in pairs(group) do
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143 if member ~= user then
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144 subscribe(user, member);
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145 subscribe(member, user);
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146 end
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147 end
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148
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149 return true, ("Welcome to the %s group"):format(fields.group);
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150 end)), "local_user"));