22 lines
569 B
Go
22 lines
569 B
Go
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package mux
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import (
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"io"
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"net/http"
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)
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type optionsHandler struct{}
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func (optionsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", "0")
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if r.ContentLength != 0 {
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// Read up to 4KB of OPTIONS body (as mentioned in the
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// spec as being reserved for future use), but anything
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// over that is considered a waste of server resources
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// (or an attack) and we abort and close the connection,
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// courtesy of MaxBytesReader's EOF behavior.
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mb := http.MaxBytesReader(w, r.Body, 4<<10)
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io.Copy(io.Discard, mb)
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}
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}
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