Mercurial > prosody-modules
annotate mod_csi/mod_csi.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> |
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date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | eaf0b1e95016 |
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1483
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Matthew Wild <mwild1@gmail.com>
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1 local st = require "util.stanza"; |
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2 local xmlns_csi = "urn:xmpp:csi:0"; |
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3 local csi_feature = st.stanza("csi", { xmlns = xmlns_csi }); |
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4 |
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Matthew Wild <mwild1@gmail.com>
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5 module:hook("stream-features", function (event) |
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6 if event.origin.username then |
90fe03e65d2c
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7 event.features:add_child(csi_feature); |
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8 end |
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9 end); |
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10 |
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Matthew Wild <mwild1@gmail.com>
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11 function refire_event(name) |
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12 return function (event) |
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13 if event.origin.username then |
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mod_csi: Backport 989cf872d5c0 from Prosody 0.11 to preserve compatibility
Matthew Wild <mwild1@gmail.com>
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14 event.origin.state = event.stanza.name; |
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15 module:fire_event(name, event); |
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16 return true; |
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17 end |
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18 end; |
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19 end |
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20 |
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Kim Alvefur <zash@zash.se>
parents:
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21 module:hook("stanza/"..xmlns_csi..":active", refire_event("csi-client-active")); |
fbb4cd2922a1
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parents:
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22 module:hook("stanza/"..xmlns_csi..":inactive", refire_event("csi-client-inactive")); |
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23 |