Mercurial > prosody-modules
annotate misc/systemd/socket-activation.lua @ 4432:e83284d4d5c2
mod_auth_ccert/README: Add setting to ensure Prosdy asks for client certificate
This used to be the default for all services, but since it triggers
annoying popups in web browsers it was inverted in Prosody and only s2s
enables it, so it needs to be explicitly enabled for c2s again.
See trunk 115b5e32d960
Thanks debacle
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 06 Feb 2021 21:34:25 +0100 |
parents | 3296a09b4e57 |
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rev | line source |
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misc/systemd: Experimental files for enabling socket activation
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1 -- Monkeypatch to support socket activation |
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2 -- |
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3 -- Requires LuaSocket after "agnostic" changes merged |
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4 -- |
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5 -- To enable: |
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6 -- RunScript "socket-activation.lua" |
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7 |
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8 local socket = require"socket"; |
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9 local tcp_serv_mt = debug.getregistry()["tcp{server}"]; |
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10 local socket_bind = socket.bind; |
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11 |
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12 local SD_LISTEN_FDS_START = 3; |
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13 |
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14 local fds = tonumber(os.getenv"LISTEN_FDS") or 0; |
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15 |
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16 if fds < SD_LISTEN_FDS_START then return; end |
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17 |
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18 local servs = {}; |
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19 |
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20 for i = 1, fds do |
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21 local serv = socket.tcp(); |
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22 if serv:getfd() >= 0 then |
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23 return; -- This won't work, we will leak the old FD |
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24 end |
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25 debug.setmetatable(serv, tcp_serv_mt); |
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26 serv:setfd(SD_LISTEN_FDS_START + i - 1); |
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27 local ip, port = serv:getsockname(); |
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28 servs [ ip .. ":" .. port ] = serv; |
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29 end |
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30 |
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31 function socket.bind( ip, port, backlog ) |
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32 local sock = servs [ ip .. ":" .. port ]; |
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33 if sock then |
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34 servs [ ip .. ":" .. port ] = nil; |
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35 return sock; |
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36 end |
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37 if next(servs) == nil then |
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38 -- my work here is done |
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39 socket.bind = socket_bind; |
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40 end |
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41 return socket_bind( ip, port, backlog ); |
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42 end |