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annotate mod_block_subscribes/mod_block_subscribes.lua @ 5381:32a9817c7516

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mod_firewall: Initialize compiled chunk just once for all handlers This should fix a case where some stateful dependencies (such as throttles) produce separate instances for every call to new_handler(), leading to surprising behaviour (e.g. rules executed via JUMP CHAIN vs ::deliver would have separate rate limits). This also adds better error handling in case the compiled code fails to run for some reason.
author Matthew Wild <mwild1@gmail.com>
date Fri, 28 Apr 2023 13:27:06 +0100
parents f88381a39c56
children
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f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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1 local allowed_presence_types = { probe = true, unavailable = true };
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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2
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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3 function filter_presence(event)
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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4 local stanza = event.stanza;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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5 local presence_type = stanza.attr.type;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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6 if presence_type == nil or allowed_presence_types[presence_type] then
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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7 return;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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8 end
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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9 return true; -- Drop
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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10 end
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11
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
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12 module:hook("pre-presence/bare", filter_presence, 200); -- Client sending
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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13 module:hook("presence/bare", filter_presence, 200); -- Client receiving