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annotate mod_host_blacklist/mod_host_blacklist.lua @ 5536:96dec7681af8

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mod_firewall: Update user marks to store instantly via map store The original approach was to keep marks in memory only, and persist them at shutdown. That saves I/O, at the cost of potentially losing marks on an unclean shutdown. This change persists marks instantly, which may have some performance overhead but should be more "correct". It also splits the marking/unmarking into an event which may be watched or even fired by other modules.
author Matthew Wild <mwild1@gmail.com>
date Thu, 08 Jun 2023 16:20:42 +0100
parents 547b3c05cc06
children
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513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
Matthew Wild <mwild1@gmail.com>
parents:
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1 local jid_split = require "util.jid".split;
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2 local st = require "util.stanza";
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3 local set = require "util.set";
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4 local select = select;
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parents:
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513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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6 local blacklist = module:get_option_inherited_set("host_blacklist", {});
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parents:
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7
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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parents:
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8 local function stanza_checker(attr)
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9 return function (event)
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005b0429cf46 mod_host_blacklist: Small fix
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parents: 1180
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10 local host = select(2, jid_split(event.stanza.attr[attr]));
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11 if blacklist:contains(host) then
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12 module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
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547b3c05cc06 mod_host_blacklist: Bigger fix: return true to block original stanza (thanks Zash)
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parents: 1181
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13 return true;
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14 end
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15 end
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16 end
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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parents:
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17
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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parents:
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18 check_incoming_stanza = stanza_checker("from");
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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19 check_outgoing_stanza = stanza_checker("to");
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parents:
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513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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21 for stanza_type in set.new{"presence","message","iq"}:items() do
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
Matthew Wild <mwild1@gmail.com>
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22 for jid_type in set.new{"bare", "full", "host"}:items() do
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Matthew Wild <mwild1@gmail.com>
parents:
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23 module:hook("pre-"..stanza_type.."/"..jid_type, check_outgoing_stanza, 500);
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parents:
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24 module:hook(stanza_type.."/"..jid_type, check_incoming_stanza, 500);
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parents:
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25 end
513aa2e0c045 mod_host_blacklist: Similar to mod_s2s_blacklist, but stanza-based. Works between hosts on the same server, at a slight performance impact.
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parents:
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26 end