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package proxy
import (
"fmt"
"net/http"
"net/http/httputil"
"net/url"
"time"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/helper"
)
var (
defaultTarget = helper.URLMustParse("http://localhost")
)
type Proxy struct {
Version string
reverseProxy *httputil.ReverseProxy
AllowResponseBuffering bool
}
func NewProxy(myURL *url.URL, version string, roundTripper http.RoundTripper) *Proxy {
p := Proxy{Version: version, AllowResponseBuffering: true}
if myURL == nil {
myURL = defaultTarget
}
u := *myURL // Make a copy of p.URL
u.Path = ""
p.reverseProxy = httputil.NewSingleHostReverseProxy(&u)
p.reverseProxy.Transport = roundTripper
return &p
}
func (p *Proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// Clone request
req := *r
req.Header = helper.HeaderClone(r.Header)
// Set Workhorse version
req.Header.Set("Gitlab-Workhorse", p.Version)
req.Header.Set("Gitlab-Workhorse-Proxy-Start", fmt.Sprintf("%d", time.Now().UnixNano()))
if p.AllowResponseBuffering {
helper.AllowResponseBuffering(w)
}
p.reverseProxy.ServeHTTP(w, &req)
}
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