mirror of
https://github.com/rls-moe/nyx
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35 lines
666 B
Go
35 lines
666 B
Go
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// +build go1.7,!go1.8
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package middleware
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import (
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"io"
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"net/http"
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)
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// NewWrapResponseWriter wraps an http.ResponseWriter, returning a proxy that allows you to
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// hook into various parts of the response process.
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func NewWrapResponseWriter(w http.ResponseWriter, protoMajor int) WrapResponseWriter {
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_, cn := w.(http.CloseNotifier)
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_, fl := w.(http.Flusher)
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bw := basicWriter{ResponseWriter: w}
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if protoMajor == 2 {
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if cn && fl {
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return &http2FancyWriter{bw}
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}
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} else {
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_, hj := w.(http.Hijacker)
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_, rf := w.(io.ReaderFrom)
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if cn && fl && hj && rf {
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return &httpFancyWriter{bw}
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}
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}
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if fl {
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return &flushWriter{bw}
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}
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return &bw
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}
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