annotate mod_block_subscriptions/mod_block_subscriptions.lua @ 4813:0a257d1402c3

mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents 107eb83aa732
children
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107eb83aa732 mod_block_subscriptions: Block incoming and outgoing presence subscriptions (useful in conjunction with mod_readonly)
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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)
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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
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9 return true; -- Drop
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10 end
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11
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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