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mod_tls_policy/mod_tls_policy.lua @ 3965:2b10e51d85a6
mod_muc_limits: Add config option to limit to join stanzas only
This is a bit more limited in pre-0.11 MUC modules, because it just
detects stanzas sent to full JIDs (which would include all presence
and nick changes).
This option is useful for setups where users are typically unaffiliated,
but trusted (e.g. if access to the room is gated through some other
means such as password/token auth).
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 03 Apr 2020 12:26:56 +0100 |
parent | 1891:a43ed0d28918 |
child | 4674:1b701f208b1b |
rev | line source |
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1600
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mod_tls_policy: New module to enforce per-host TLS parameter policies
Kim Alvefur <zash@zash.se>
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1 |
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2 assert(require"ssl.core".info, "Incompatible LuaSec version"); |
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3 |
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4 local function hook(event_name, typ, policy) |
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5 if not policy then return end |
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6 if policy == "FS" then |
1891
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mod_tls_policy: Change the FS shortcut to match on ciphers with (EC)DHE (produces nicer stream error)
Kim Alvefur <zash@zash.se>
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7 policy = { cipher = "^E?C?DHE%-" }; |
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8 elseif type(policy) == "string" then |
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9 policy = { cipher = policy }; |
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10 end |
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11 |
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12 module:hook(event_name, function (event) |
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13 local origin = event.origin; |
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14 if origin.encrypted then |
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15 local info = origin.conn:socket():info(); |
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16 for key, what in pairs(policy) do |
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17 module:log("debug", "Does info[%q] = %s match %s ?", key, tostring(info[key]), tostring(what)); |
1601
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mod_tls_policy: Fix pattern matching
Kim Alvefur <zash@zash.se>
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18 if (type(what) == "number" and what < info[key] ) or (type(what) == "string" and not info[key]:match(what)) then |
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mod_tls_policy: Include which part of the cipher that did not match the policy in stream error
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19 origin:close({ condition = "policy-violation", text = ("TLS %s '%s' not acceptable"):format(key, tostring(info[key])) }); |
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20 return false; |
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21 end |
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22 module:log("debug", "Seems so"); |
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23 end |
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24 module:log("debug", "Policy matches"); |
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25 end |
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26 end, 1000); |
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27 end |
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28 |
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29 local policy = module:get_option(module.name, {}); |
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30 |
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31 if type(policy) == "string" then |
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32 policy = { c2s = policy, s2s = policy }; |
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33 end |
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34 |
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35 hook("stream-features", "c2s", policy.c2s); |
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36 hook("s2s-stream-features", "s2sin", policy.s2sin or policy.s2s); |
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37 hook("stanza/http://etherx.jabber.org/streams:features", "s2sout", policy.s2sout or policy.s2s); |