1 files changed, 0 insertions, 188 deletions
diff --git a/gcc-4.8.1/libgo/go/net/http/httputil/reverseproxy.go b/gcc-4.8.1/libgo/go/net/http/httputil/reverseproxy.go
deleted file mode 100644
index 134c45299..000000000
--- a/gcc-4.8.1/libgo/go/net/http/httputil/reverseproxy.go
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// HTTP reverse proxy handler
-
-package httputil
-
-import (
-	"io"
-	"log"
-	"net"
-	"net/http"
-	"net/url"
-	"strings"
-	"sync"
-	"time"
-)
-
-// onExitFlushLoop is a callback set by tests to detect the state of the
-// flushLoop() goroutine.
-var onExitFlushLoop func()
-
-// ReverseProxy is an HTTP Handler that takes an incoming request and
-// sends it to another server, proxying the response back to the
-// client.
-type ReverseProxy struct {
-	// Director must be a function which modifies
-	// the request into a new request to be sent
-	// using Transport. Its response is then copied
-	// back to the original client unmodified.
-	Director func(*http.Request)
-
-	// The transport used to perform proxy requests.
-	// If nil, http.DefaultTransport is used.
-	Transport http.RoundTripper
-
-	// FlushInterval specifies the flush interval
-	// to flush to the client while copying the
-	// response body.
-	// If zero, no periodic flushing is done.
-	FlushInterval time.Duration
-}
-
-func singleJoiningSlash(a, b string) string {
-	aslash := strings.HasSuffix(a, "/")
-	bslash := strings.HasPrefix(b, "/")
-	switch {
-	case aslash && bslash:
-		return a + b[1:]
-	case !aslash && !bslash:
-		return a + "/" + b
-	}
-	return a + b
-}
-
-// NewSingleHostReverseProxy returns a new ReverseProxy that rewrites
-// URLs to the scheme, host, and base path provided in target. If the
-// target's path is "/base" and the incoming request was for "/dir",
-// the target request will be for /base/dir.
-func NewSingleHostReverseProxy(target *url.URL) *ReverseProxy {
-	targetQuery := target.RawQuery
-	director := func(req *http.Request) {
-		req.URL.Scheme = target.Scheme
-		req.URL.Host = target.Host
-		req.URL.Path = singleJoiningSlash(target.Path, req.URL.Path)
-		if targetQuery == "" || req.URL.RawQuery == "" {
-			req.URL.RawQuery = targetQuery + req.URL.RawQuery
-		} else {
-			req.URL.RawQuery = targetQuery + "&" + req.URL.RawQuery
-		}
-	}
-	return &ReverseProxy{Director: director}
-}
-
-func copyHeader(dst, src http.Header) {
-	for k, vv := range src {
-		for _, v := range vv {
-			dst.Add(k, v)
-		}
-	}
-}
-
-func (p *ReverseProxy) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
-	transport := p.Transport
-	if transport == nil {
-		transport = http.DefaultTransport
-	}
-
-	outreq := new(http.Request)
-	*outreq = *req // includes shallow copies of maps, but okay
-
-	p.Director(outreq)
-	outreq.Proto = "HTTP/1.1"
-	outreq.ProtoMajor = 1
-	outreq.ProtoMinor = 1
-	outreq.Close = false
-
-	// Remove the connection header to the backend.  We want a
-	// persistent connection, regardless of what the client sent
-	// to us.  This is modifying the same underlying map from req
-	// (shallow copied above) so we only copy it if necessary.
-	if outreq.Header.Get("Connection") != "" {
-		outreq.Header = make(http.Header)
-		copyHeader(outreq.Header, req.Header)
-		outreq.Header.Del("Connection")
-	}
-
-	if clientIP, _, err := net.SplitHostPort(req.RemoteAddr); err == nil {
-		// If we aren't the first proxy retain prior
-		// X-Forwarded-For information as a comma+space
-		// separated list and fold multiple headers into one.
-		if prior, ok := outreq.Header["X-Forwarded-For"]; ok {
-			clientIP = strings.Join(prior, ", ") + ", " + clientIP
-		}
-		outreq.Header.Set("X-Forwarded-For", clientIP)
-	}
-
-	res, err := transport.RoundTrip(outreq)
-	if err != nil {
-		log.Printf("http: proxy error: %v", err)
-		rw.WriteHeader(http.StatusInternalServerError)
-		return
-	}
-	defer res.Body.Close()
-
-	copyHeader(rw.Header(), res.Header)
-
-	rw.WriteHeader(res.StatusCode)
-	p.copyResponse(rw, res.Body)
-}
-
-func (p *ReverseProxy) copyResponse(dst io.Writer, src io.Reader) {
-	if p.FlushInterval != 0 {
-		if wf, ok := dst.(writeFlusher); ok {
-			mlw := &maxLatencyWriter{
-				dst:     wf,
-				latency: p.FlushInterval,
-				done:    make(chan bool),
-			}
-			go mlw.flushLoop()
-			defer mlw.stop()
-			dst = mlw
-		}
-	}
-
-	io.Copy(dst, src)
-}
-
-type writeFlusher interface {
-	io.Writer
-	http.Flusher
-}
-
-type maxLatencyWriter struct {
-	dst     writeFlusher
-	latency time.Duration
-
-	lk   sync.Mutex // protects Write + Flush
-	done chan bool
-}
-
-func (m *maxLatencyWriter) Write(p []byte) (int, error) {
-	m.lk.Lock()
-	defer m.lk.Unlock()
-	return m.dst.Write(p)
-}
-
-func (m *maxLatencyWriter) flushLoop() {
-	t := time.NewTicker(m.latency)
-	defer t.Stop()
-	for {
-		select {
-		case <-m.done:
-			if onExitFlushLoop != nil {
-				onExitFlushLoop()
-			}
-			return
-		case <-t.C:
-			m.lk.Lock()
-			m.dst.Flush()
-			m.lk.Unlock()
-		}
-	}
-	panic("unreached")
-}
-
-func (m *maxLatencyWriter) stop() { m.done <- true }