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cmdeploy/opendkim/final.lua: Readability refactor of header pruning

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Refactor DKIM-Header-Pruning into a  "if valid-else" construct with a single "return nil" at the end
This commit is contained in:
j4n
2025-12-04 12:12:18 +01:00
parent e1d97c5dd1
commit 3ef307611f
1 changed files with 7 additions and 8 deletions
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15
cmdeploy/src/cmdeploy/opendkim/final.lua
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@@ -28,7 +28,13 @@ for i = 1, nsigs do
end
end
if not valid then
if valid then
-- Strip all DKIM-Signature headers after successful validation
-- Delete in reverse order to avoid index shifting.
for i = nsigs, 1, -1 do
odkim.del_header(ctx, "DKIM-Signature", i)
end
else
odkim.set_reply(ctx, "554", "5.7.1", "No valid DKIM signature found")
-- Delete in reverse order to avoid index shifting.
for i = nsigs, 1, -1 do
@@ -37,13 +43,6 @@ if not valid then
else
odkim.set_reply(ctx, "554", "5.7.1", error_msg)
odkim.set_result(ctx, SMFIS_REJECT)
return nil
end
-- Valid signature found. Strip all DKIM-Signature headers
-- Delete in reverse order to avoid index shifting.
for i = nsigs, 1, -1 do
odkim.del_header(ctx, "DKIM-Signature", i)
end
return nil