annotate mod_unsubscriber/mod_unsubscriber.lua @ 5168:e00dc913d965

mod_unsubscriber: Revoke roster subscriptions of unreachable hosts Wrote a version of this long ago, but it was lost to time. Here it is again, from scratch!
author Kim Alvefur <zash@zash.se>
date Sun, 19 Feb 2023 17:39:04 +0100
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e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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1 assert(module:get_host_type() == "component", "This module should be loaded as a Component");
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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2
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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3 local st = require "util.stanza";
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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4
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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5 module:hook("presence/bare", function(event)
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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6 local origin, stanza = event.origin, event.stanza;
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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7 if stanza.attr.type == "probe" then
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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8 -- they are subscribed and want our current presence
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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9 -- tell them we denied their subscription
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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10 local reply = st.reply(stanza)
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
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11 reply.attr.type = "unsubcribed";
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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12 origin.send(reply);
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
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13 return true;
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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14 elseif stanza.attr.type == nil then
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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15 -- they think we are subscribed and sent their current presence
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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16 -- tell them we unsubscribe
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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17 local reply = st.reply(stanza)
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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18 reply.attr.type = "unsubcribe";
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
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19 origin.send(reply);
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20 return true;
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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21 end
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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22 -- fall trough to default error
e00dc913d965 mod_unsubscriber: Revoke roster subscriptions of unreachable hosts
Kim Alvefur <zash@zash.se>
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23 end);