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perf: Optimize resolving X-Forwarded-For addresses #5458

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merged 4 commits into from
May 15, 2024
Merged

perf: Optimize resolving X-Forwarded-For addresses #5458

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37c6fc5
Optimize resolving X-Forwarded-For addresses
dmkng May 10, 2024
2db2987
Replaced proxyAddr with proxyAddr.all
dmkng May 10, 2024
98ea929
Made argument absence look cleaner
dmkng May 12, 2024
5afe21a
Changed the comment to be more accurate
dmkng May 14, 2024
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5 changes: 3 additions & 2 deletions lib/request.js
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ function getTrustProxyFn (tp) {
}
if (tp === true) {
// Support plain true/false
return function () { return true }
return null
}
if (typeof tp === 'number') {
// Support trusting hop count
Expand Down Expand Up @@ -115,7 +115,8 @@ function buildRequestWithTrustProxy (R, trustProxy) {
Object.defineProperties(_Request.prototype, {
ip: {
get () {
return proxyAddr(this.raw, proxyFn)
const addrs = proxyAddr.all(this.raw, proxyFn)
return addrs[addrs.length - 1]
}
},
Comment on lines 116 to 121
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Just leaving a note here that this won't slow down the performance if only one IP exists, as proxyAddr itself also calls proxyAddr.all, and returns the last element of the returned array, so it does the same thing

ips: {
Expand Down