prosody-modules
8231774f5bfd
mod_s2s_whitelist/mod_s2s_whitelist.lua

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mod_s2s_whitelist/mod_s2s_whitelist.lua @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parent 1288:c1a8ce147885
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1288
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
parents:
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1 local st = require "util.stanza";
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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2
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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3 local whitelist = module:get_option_inherited_set("s2s_whitelist", {});
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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4
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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5 module:hook("route/remote", function (event)
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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6 if not whitelist:contains(event.to_host) then
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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7 module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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8 return true;
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9 end
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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10 end, 100);
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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11
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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12 module:hook("s2s-stream-features", function (event)
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13 if not whitelist:contains(event.origin.from_host) then
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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14 event.origin:close({
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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15 condition = "policy-violation";
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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16 text = "Communication with this domain is restricted";
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
Kim Alvefur <zash@zash.se>
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17 });
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18 end
c1a8ce147885 mod_s2s_whitelist: The opposite of mod_s2s_blacklist
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parents:
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19 end, 1000);