mirror of https://github.com/linkerd/linkerd2.git
33 lines
856 B
Go
33 lines
856 B
Go
package srv
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import (
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"net/http"
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"net/http/httputil"
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"strings"
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)
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// reverseProxy is an HTTP reverse proxy that forwards all web requests
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// containing paths prefixed to the corresponding service. The proxy
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// strips the prefix and rewrites the Host header before sending.
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type reverseProxy struct {
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*httputil.ReverseProxy
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}
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func newReverseProxy(addr string, prefix string) *reverseProxy {
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director := func(req *http.Request) {
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req.URL.Host = addr
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req.URL.Scheme = "http"
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req.URL.Path = strings.TrimPrefix(req.URL.Path, prefix)
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// the default director implementation does this, so we will too
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if _, ok := req.Header["User-Agent"]; !ok {
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// explicitly disable User-Agent so it's not set to default value
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req.Header.Set("User-Agent", "")
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}
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}
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return &reverseProxy{
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ReverseProxy: &httputil.ReverseProxy{Director: director},
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}
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}
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