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style(router/atc): simplify sni transform code #13059

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merged 1 commit into from
May 28, 2024
Merged

style(router/atc): simplify sni transform code #13059

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21 changes: 10 additions & 11 deletions kong/router/transform.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -295,20 +295,19 @@ end


local function sni_val_transform(op, sni)
-- prefix matching
-- prefix matching, like 'x.*'
if op == OP_PREFIX then
sni = sni:sub(1, -2)
return sni:sub(1, -2)
end

else
if #sni > 1 and byte(sni, -1) == DOT then
-- last dot in FQDNs must not be used for routing
sni = sni:sub(1, -2)
end
-- last dot in FQDNs must not be used for routing
if #sni > 1 and byte(sni, -1) == DOT then
sni = sni:sub(1, -2)
end

-- postfix matching
if op == OP_POSTFIX then
sni = sni:sub(2)
end
-- postfix matching, like '*.x'
if op == OP_POSTFIX then
sni = sni:sub(2)
end

return sni
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