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Merge pull request #7290 from wryfi/7150-fix-passwd-verify

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Fix #7150: passwd-verify.lua wipes auth cache during any nginx outage
This commit is contained in:
FreddleSpl0it
2026-08-18 13:27:01 +02:00
committed by GitHub
parent 089c44aee1 ddcce811c1
commit 2195a674ff
1 changed files with 10 additions and 1 deletions
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data/conf/dovecot/auth/passwd-verify.lua
+10 -1
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@@ -32,8 +32,17 @@ function auth_password_verify(request, password)
-- Returning PASSDB_RESULT_PASSWORD_MISMATCH will reset the user's auth cache entry.
-- Returning PASSDB_RESULT_INTERNAL_FAILURE keeps the existing cache entry,
-- even if the TTL has expired. Useful to avoid cache eviction during backend issues.
-- On a network-level failure (nginx unreachable, DNS failure, timeout) https.request
-- returns nil plus an error string, so c is not a numeric HTTP status code. Treat this
-- as a backend outage and keep the cache entry, rather than wiping it as a mismatch.
if type(c) ~= "number" then
dovecot.i_info("HTTP request to auth backend failed with " .. tostring(c) .. " for user " .. request.user)
return dovecot.auth.PASSDB_RESULT_INTERNAL_FAILURE, "Upstream unreachable"
end
if c ~= 200 and c ~= 401 then
dovecot.i_info("HTTP request failed with " .. c .. " for user " .. request.user)
dovecot.i_info("HTTP request failed with " .. tostring(c) .. " for user " .. request.user)
return dovecot.auth.PASSDB_RESULT_PASSWORD_MISMATCH, "Upstream error"
end