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annotate mod_block_s2s_subscriptions/mod_block_s2s_subscriptions.lua @ 5185:09d6bbd6c8a4

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mod_http_oauth2: Fix treatment of 'redirect_uri' parameter in code flow It's optional and the one stored in the client registration should really be used instead. RFC 6749 says an URI provided as parameter MUST be validated against the stored one but does not say how. Given that the client needs their secret to proceed, it seems fine to leave this for later.
author Kim Alvefur <zash@zash.se>
date Thu, 02 Mar 2023 22:00:42 +0100
parents 70ff25db37fa
children
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70ff25db37fa mod_block_s2s_subscriptions: New module to block incoming presence subscriptions from non-contacts on selected remote hosts
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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