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This allows us to take advantage of http.ServeMux's wildcard handling. If we first retrieve the handler for a pattern, and then call it ourselves, the values in `request.PathValue(...)` do not get filled.
aarongable
reviewed
Nov 8, 2024
| // POSTable ACME endpoints | ||
| wfe.HandleFunc(m, newAcctPath, wfe.NewAccount, "POST") | ||
| wfe.HandleFunc(m, acctPath, wfe.Account, "POST") | ||
| wfe.HandleFunc(m, acctPath+"{acctID}", wfe.Account, "POST") |
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I was wondering why you didn't just change acctPath to include the pattern, but then I realized that we also use acctPath (and similar) as an argument to web.relativeEndpoint. Is there a reasonable way to update relativeEndpoint to take a pattern as input?
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Previously, we manually parsed path components. As of Go 1.22, we can include wildcards in ServeMux patterns: https://pkg.go.dev/net/http#hdr-Patterns-ServeMux. This simplifies our parsing code a little bit.
To get the values of such wildcards, we use
request.PathValue. Ourmetrics/measured_httpcode interfered with setting those values, so I modified it. Instead of retrieving the handler for a given request, then calling it, we retrieve only the pattern matched by that request. Then we call.ServeHTTP()on the innerServeMux.(Needs unittest updates)