annotate mod_block_subscriptions/mod_block_subscriptions.lua @ 5173:460f78654864

mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.
author Jonas Schäfer <jonas@wielicki.name>
date Tue, 21 Feb 2023 21:37:27 +0100
parents 107eb83aa732
children
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107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
Matthew Wild <mwild1@gmail.com>
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1 local allowed_presence_types = { probe = true, unavailable = true };
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2
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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3 function filter_presence(event)
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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4 local stanza = event.stanza;
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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5 local presence_type = stanza.attr.type;
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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6 if presence_type == nil or allowed_presence_types[presence_type] then
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
Matthew Wild <mwild1@gmail.com>
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7 return;
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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8 end
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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9 return true; -- Drop
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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10 end
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12 module:hook("pre-presence/bare", filter_presence, 200); -- Client sending
107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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13 module:hook("presence/bare", filter_presence, 200); -- Client receiving