Mercurial > prosody-modules
annotate mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua @ 5383:df11a2cbc7b7
mod_http_oauth2: Implement RFC 7628 Proof Key for Code Exchange
Likely to become mandatory in OAuth 2.1.
Backwards compatible since the default 'plain' verifier would compare
nil with nil if the relevant parameters are left out.
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 29 Apr 2023 13:09:46 +0200 |
parents | ee2cedb0f691 |
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mod_s2s_auth_fingerprint: Allways pin fingerprints
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1 -- Copyright (C) 2013-2014 Kim Alvefur |
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2 -- This file is MIT/X11 licensed. |
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3 |
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4 module:set_global(); |
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5 |
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6 local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1"); |
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7 |
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8 local fingerprints = {}; |
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9 |
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10 local function hashprep(h) |
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11 return tostring(h):gsub(":",""):lower(); |
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12 end |
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13 |
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14 local function hashfmt(h) |
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15 return h:gsub("..","%0:", #h/2-1):upper(); |
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16 end |
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18 for host, set in pairs(module:get_option("s2s_trusted_fingerprints", {})) do |
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19 local host_set = {} |
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20 if type(set) == "table" then -- list of fingerprints |
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21 for i=1,#set do |
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22 host_set[hashprep(set[i])] = true; |
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23 end |
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24 else -- assume single fingerprint |
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25 host_set[hashprep(set)] = true; |
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26 end |
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27 fingerprints[host] = host_set; |
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28 end |
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30 module:hook("s2s-check-certificate", function(event) |
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31 local session, host, cert = event.session, event.host, event.cert; |
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32 |
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33 local host_fingerprints = fingerprints[host]; |
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34 if host_fingerprints then |
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35 local digest = cert and cert:digest(digest_algo); |
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36 if host_fingerprints[digest] then |
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37 module:log("info", "'%s' matched %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest)); |
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38 session.cert_chain_status = "valid"; |
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39 session.cert_identity_status = "valid"; |
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40 return true; |
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41 else |
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42 module:log("warn", "'%s' has unknown %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest)); |
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43 session.cert_chain_status = "invalid"; |
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44 session.cert_identity_status = "invalid"; |
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45 end |
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46 end |
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47 end); |