annotate mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua @ 5256:44f7edd4f845

mod_http_oauth2: Reject non-local hosts in more code paths We're not issuing tokens for users on remote hosts, we can't even authenticate them since they're remote. Thus the host is always the local module.host so no need to pass around the host in most cases or use it for anything but enforcing the same host.
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 17:52:10 +0100
parents 70ff25db37fa
children
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2 local jid_split = require "util.jid".split;
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3 local jid_bare = require "util.jid".bare;
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4 local load_roster = require "core.rostermanager".load_roster;
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6 local blocked_servers = module:get_option_set("block_s2s_subscriptions")._items;
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8 function filter_presence(event)
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9 if blocked_servers[event.origin.from_host] and event.stanza.attr.type == "subscribe" then
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10 local stanza = event.stanza;
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11 local to_user, to_host = jid_split(stanza.attr.to);
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12 local roster = load_roster(to_user, to_host);
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13 if roster and roster[jid_bare(stanza.attr.from)] then
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14 return; -- In roster, pass through
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15 end
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16 return true; -- Drop
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17 end
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18 end
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20 module:hook("presence/bare", filter_presence, 200); -- Client receiving