prosody-modules
8231774f5bfd
mod_block_subscribes/mod_block_subscribes.lua

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mod_block_subscribes/mod_block_subscribes.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 926:f88381a39c56
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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926
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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1 local allowed_presence_types = { probe = true, unavailable = true };
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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2
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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3 function filter_presence(event)
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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4 local stanza = event.stanza;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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5 local presence_type = stanza.attr.type;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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6 if presence_type == nil or allowed_presence_types[presence_type] then
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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7 return;
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
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8 end
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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9 return true; -- Drop
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
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10 end
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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11
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
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12 module:hook("pre-presence/bare", filter_presence, 200); -- Client sending
f88381a39c56 mod_block_subscribes: Block inbound and outbound subscription requests (useful to prevent implicit roster modification)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 module:hook("presence/bare", filter_presence, 200); -- Client receiving