Software / code / prosody
Annotate
plugins/mod_s2s_auth_certs.lua @ 10571:cfeb0077c9e9
net.server_epoll: Avoid concatenating buffer with single item
Saves creating a string that'll be identical to buffer[1] anyways, as
well as a C function call. Depending on Lua version and length of the
string, this could be reusing an interned string, but a longer one would
probably be duplicated for no reason.
Having exactly one item in the buffer seems like it would be fairly
common, but I have not done an extensive study. If opportunistic writes
are enabled then it will be even more likely.
This special case could be optimized like this in table.concat but it
does not look like it is.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sat, 28 Dec 2019 06:18:58 +0100 |
| parent | 10454:6c3fccb75b38 |
| child | 11835:a405884c62f4 |
| rev | line source |
|---|---|
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1 module:set_global(); |
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2 |
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3 local cert_verify_identity = require "util.x509".verify_identity; |
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4 local NULL = {}; |
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5 local log = module._log; |
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6 |
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7 module:hook("s2s-check-certificate", function(event) |
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8 local session, host, cert = event.session, event.host, event.cert; |
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9 local conn = session.conn:socket(); |
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10 local log = session.log or log; |
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11 |
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12 if not cert then |
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13 log("warn", "No certificate provided by %s", host or "unknown host"); |
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14 return; |
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15 end |
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16 |
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17 local chain_valid, errors; |
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18 if conn.getpeerverification then |
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19 chain_valid, errors = conn:getpeerverification(); |
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20 else |
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21 chain_valid, errors = false, { { "Chain verification not supported by this version of LuaSec" } }; |
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22 end |
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23 -- Is there any interest in printing out all/the number of errors here? |
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24 if not chain_valid then |
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25 log("debug", "certificate chain validation result: invalid"); |
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26 for depth, t in pairs(errors or NULL) do |
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27 log("debug", "certificate error(s) at depth %d: %s", depth-1, table.concat(t, ", ")) |
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28 end |
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29 session.cert_chain_status = "invalid"; |
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30 session.cert_chain_errors = errors; |
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31 else |
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32 log("debug", "certificate chain validation result: valid"); |
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33 session.cert_chain_status = "valid"; |
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34 |
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35 -- We'll go ahead and verify the asserted identity if the |
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36 -- connecting server specified one. |
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37 if host then |
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38 if cert_verify_identity(host, "xmpp-server", cert) then |
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39 session.cert_identity_status = "valid" |
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40 else |
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41 session.cert_identity_status = "invalid" |
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42 end |
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43 log("debug", "certificate identity validation result: %s", session.cert_identity_status); |
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44 end |
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45 end |
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46 end, 509); |
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47 |
