Update elazarl/goproxy

2025-11-03 19:58:17 +00:00 · 2017-04-05 23:29:15 +02:00
parent dbcfdb378d
commit b5ce698a68
7 changed files with 186 additions and 76 deletions
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -940,8 +940,8 @@
 		},
 		{
 			"ImportPath": "github.com/elazarl/goproxy",
-			"Comment": "v1.0-66-g07b16b6",
-			"Rev": "07b16b6e30fcac0ad8c0435548e743bcf2ca7e92"
+			"Comment": "v1.0-104-gc4fc265",
+			"Rev": "c4fc26588b6ef8af07a191fcb6476387bdd46711"
 		},
 		{
 			"ImportPath": "github.com/emicklei/go-restful",
--- a/staging/src/k8s.io/apimachinery/Godeps/Godeps.json
+++ b/staging/src/k8s.io/apimachinery/Godeps/Godeps.json
@@ -28,7 +28,7 @@
 		},
 		{
 			"ImportPath": "github.com/elazarl/goproxy",
-			"Rev": "07b16b6e30fcac0ad8c0435548e743bcf2ca7e92"
+			"Rev": "c4fc26588b6ef8af07a191fcb6476387bdd46711"
 		},
 		{
 			"ImportPath": "github.com/emicklei/go-restful",
--- a/vendor/github.com/elazarl/goproxy/README.md
+++ b/vendor/github.com/elazarl/goproxy/README.md
@@ -1,5 +1,6 @@
 # Introduction

+[![GoDoc](https://godoc.org/github.com/elazarl/goproxy?status.svg)](https://godoc.org/github.com/elazarl/goproxy)
 [![Join the chat at https://gitter.im/elazarl/goproxy](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/elazarl/goproxy?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)

 Package goproxy provides a customizable HTTP proxy library for Go (golang),
@@ -8,7 +9,7 @@ It supports regular HTTP proxy, HTTPS through CONNECT, and "hijacking" HTTPS
 connection using "Man in the Middle" style attack.

 The intent of the proxy, is to be usable with reasonable amount of traffic
-yet, customizable and programable.
+yet, customizable and programmable.

 The proxy itself is simply a `net/http` handler.

@@ -35,7 +36,7 @@ as customable as goproxy intend to be. The main difference is, Fiddler is not
 intended to be used as a real proxy.

 A possible use case that suits goproxy but
-not Fiddler, is, gathering statisitics on page load times for a certain website over a week.
+not Fiddler, is, gathering statistics on page load times for a certain website over a week.
 With goproxy you could ask all your users to set their proxy to a dedicated machine running a
 goproxy server. Fiddler is a GUI app not designed to be ran like a server for multiple users.

@@ -43,27 +44,31 @@ goproxy server. Fiddler is a GUI app not designed to be ran like a server for mu

 To get a taste of `goproxy`, a basic HTTP/HTTPS transparent proxy

+```go
+package main

-    import (
+import (
    "github.com/elazarl/goproxy"
    "log"
    "net/http"
-    )
+)

-    func main() {
+func main() {
    proxy := goproxy.NewProxyHttpServer()
    proxy.Verbose = true
    log.Fatal(http.ListenAndServe(":8080", proxy))
-    }
-
+}
+```

 This line will add `X-GoProxy: yxorPoG-X` header to all requests sent through the proxy

-    proxy.OnRequest().DoFunc(
+```go
+proxy.OnRequest().DoFunc(
    func(r *http.Request,ctx *goproxy.ProxyCtx)(*http.Request,*http.Response) {
        r.Header.Set("X-GoProxy","yxorPoG-X")
        return r,nil
    })
+```

 `DoFunc` will process all incoming requests to the proxy. It will add a header to the request
 and return it. The proxy will send the modified request.
@@ -73,7 +78,8 @@ have discarded the request and sent the new response to the client.

 In order to refuse connections to reddit at work time

-    proxy.OnRequest(goproxy.DstHostIs("www.reddit.com")).DoFunc(
+```go
+proxy.OnRequest(goproxy.DstHostIs("www.reddit.com")).DoFunc(
    func(r *http.Request,ctx *goproxy.ProxyCtx)(*http.Request,*http.Response) {
        if h,_,_ := time.Now().Clock(); h >= 8 && h <= 17 {
            return r,goproxy.NewResponse(r,
@@ -81,13 +87,14 @@ In order to refuse connections to reddit at work time
                    "Don't waste your time!")
        }
        return r,nil
-    })
+})
+```

 `DstHostIs` returns a `ReqCondition`, that is a function receiving a `Request` and returning a boolean
 we will only process requests that matches the condition. `DstHostIs("www.reddit.com")` will return
 a `ReqCondition` accepting only requests directed to "www.reddit.com".

-`DoFunc` will recieve a function that will preprocess the request. We can change the request, or
+`DoFunc` will receive a function that will preprocess the request. We can change the request, or
 return a response. If the time is between 8:00am and 17:00pm, we will neglect the request, and
 return a precanned text response saying "do not waste your time".

@@ -102,7 +109,7 @@ See additional examples in the examples directory.
 # License

 I put the software temporarily under the Go-compatible BSD license,
-if this prevents someone from using the software, do let mee know and I'll consider changing it.
+if this prevents someone from using the software, do let me know and I'll consider changing it.

 At any rate, user feedback is very important for me, so I'll be delighted to know if you're using this package.

@@ -111,5 +118,5 @@ At any rate, user feedback is very important for me, so I'll be delighted to kno
 I've received a positive feedback from a few people who use goproxy in production settings.
 I believe it is good enough for usage.

-I'll try to keep reasonable backwards compatability. In case of a major API change,
+I'll try to keep reasonable backwards compatibility. In case of a major API change,
 I'll change the import path.
--- a/vendor/github.com/elazarl/goproxy/certs.go
+++ b/vendor/github.com/elazarl/goproxy/certs.go
@@ -22,35 +22,90 @@ var defaultTLSConfig = &tls.Config{
 }

 var CA_CERT = []byte(`-----BEGIN CERTIFICATE-----
-MIICSjCCAbWgAwIBAgIBADALBgkqhkiG9w0BAQUwSjEjMCEGA1UEChMaZ2l0aHVi
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+BUnFpB/Atptqr4CUlTXrc5IPLAqAfmwk5IKcwy3EXUbruf9Dwz69YA==
 -----END CERTIFICATE-----`)

 var CA_KEY = []byte(`-----BEGIN RSA PRIVATE KEY-----
-MIICXQIBAAKBgQC/P0FsJomPGzvdO9yreV4/faEAZ6tDVGC+VnrxnidmahUd+X7Y
-2v+bR2Zb4Z05+lNyz8rN8mNgav/zjHnbh+K5HwZ1nQc61cnPIXmx6hadsEi7KvU9
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+4/avCJ8IutT+FcMM+GbGazOm5ALWqUyhrnbLGc4CQMPfe7Il6NxwcrOxT8w=
 -----END RSA PRIVATE KEY-----`)

 var GoproxyCa, goproxyCaErr = tls.X509KeyPair(CA_CERT, CA_KEY)
--- a/vendor/github.com/elazarl/goproxy/dispatcher.go
+++ b/vendor/github.com/elazarl/goproxy/dispatcher.go
@@ -124,10 +124,15 @@ func DstHostIs(host string) ReqConditionFunc {
 	}
 }

-// SrcIpIs returns a ReqCondition testing wether the source IP of the request is the given string
-func SrcIpIs(ip string) ReqCondition {
+// SrcIpIs returns a ReqCondition testing whether the source IP of the request is one of the given strings
+func SrcIpIs(ips ...string) ReqCondition {
 	return ReqConditionFunc(func(req *http.Request, ctx *ProxyCtx) bool {
-		return strings.HasPrefix(req.RemoteAddr, ip+":")
+		for _, ip := range ips {
+			if strings.HasPrefix(req.RemoteAddr, ip+":") {
+				return true
+			}
+		}
+		return false
 	})
 }

--- a/vendor/github.com/elazarl/goproxy/https.go
+++ b/vendor/github.com/elazarl/goproxy/https.go
@@ -10,8 +10,10 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"regexp"
 	"strconv"
 	"strings"
+	"sync"
 	"sync/atomic"
 )

@@ -23,6 +25,7 @@ const (
 	ConnectMitm
 	ConnectHijack
 	ConnectHTTPMitm
+	ConnectProxyAuthHijack
 )

 var (
@@ -30,6 +33,7 @@ var (
 	MitmConnect     = &ConnectAction{Action: ConnectMitm, TLSConfig: TLSConfigFromCA(&GoproxyCa)}
 	HTTPMitmConnect = &ConnectAction{Action: ConnectHTTPMitm, TLSConfig: TLSConfigFromCA(&GoproxyCa)}
 	RejectConnect   = &ConnectAction{Action: ConnectReject, TLSConfig: TLSConfigFromCA(&GoproxyCa)}
+	httpsRegexp     = regexp.MustCompile(`^https:\/\/`)
 )

 type ConnectAction struct {
@@ -97,8 +101,25 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 		}
 		ctx.Logf("Accepting CONNECT to %s", host)
 		proxyClient.Write([]byte("HTTP/1.0 200 OK\r\n\r\n"))
-		go copyAndClose(ctx, targetSiteCon, proxyClient)
-		go copyAndClose(ctx, proxyClient, targetSiteCon)
+
+		targetTCP, targetOK := targetSiteCon.(*net.TCPConn)
+		proxyClientTCP, clientOK := proxyClient.(*net.TCPConn)
+		if targetOK && clientOK {
+			go copyAndClose(ctx, targetTCP, proxyClientTCP)
+			go copyAndClose(ctx, proxyClientTCP, targetTCP)
+		} else {
+			go func() {
+				var wg sync.WaitGroup
+				wg.Add(2)
+				go copyOrWarn(ctx, targetSiteCon, proxyClient, &wg)
+				go copyOrWarn(ctx, proxyClient, targetSiteCon, &wg)
+				wg.Wait()
+				proxyClient.Close()
+				targetSiteCon.Close()
+
+			}()
+		}
+
 	case ConnectHijack:
 		ctx.Logf("Hijacking CONNECT to %s", host)
 		proxyClient.Write([]byte("HTTP/1.0 200 OK\r\n\r\n"))
@@ -132,6 +153,7 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 					httpError(proxyClient, ctx, err)
 					return
 				}
+				defer resp.Body.Close()
 			}
 			resp = proxy.filterResponse(resp, ctx)
 			if err := resp.Write(proxyClient); err != nil {
@@ -166,6 +188,7 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 			clientTlsReader := bufio.NewReader(rawClientTls)
 			for !isEof(clientTlsReader) {
 				req, err := http.ReadRequest(clientTlsReader)
+				var ctx = &ProxyCtx{Req: req, Session: atomic.AddInt64(&proxy.sess, 1), proxy: proxy}
 				if err != nil && err != io.EOF {
 					return
 				}
@@ -175,7 +198,10 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 				}
 				req.RemoteAddr = r.RemoteAddr // since we're converting the request, need to carry over the original connecting IP as well
 				ctx.Logf("req %v", r.Host)
+
+				if !httpsRegexp.MatchString(req.URL.String()) {
 					req.URL, err = url.Parse("https://" + r.Host + req.URL.String())
+				}

 				// Bug fix which goproxy fails to provide request
 				// information URL in the context when does HTTPS MITM
@@ -196,6 +222,8 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 					ctx.Logf("resp %v", resp.Status)
 				}
 				resp = proxy.filterResponse(resp, ctx)
+				defer resp.Body.Close()
+
 				text := resp.Status
 				statusCode := strconv.Itoa(resp.StatusCode) + " "
 				if strings.HasPrefix(text, statusCode) {
@@ -234,6 +262,9 @@ func (proxy *ProxyHttpServer) handleHttps(w http.ResponseWriter, r *http.Request
 			}
 			ctx.Logf("Exiting on EOF")
 		}()
+	case ConnectProxyAuthHijack:
+		proxyClient.Write([]byte("HTTP/1.1 407 Proxy Authentication Required\r\n"))
+		todo.Hijack(r, proxyClient, ctx)
 	case ConnectReject:
 		if ctx.Resp != nil {
 			if err := ctx.Resp.Write(proxyClient); err != nil {
@@ -253,15 +284,20 @@ func httpError(w io.WriteCloser, ctx *ProxyCtx, err error) {
 	}
 }

-func copyAndClose(ctx *ProxyCtx, w, r net.Conn) {
-	connOk := true
-	if _, err := io.Copy(w, r); err != nil {
-		connOk = false
+func copyOrWarn(ctx *ProxyCtx, dst io.Writer, src io.Reader, wg *sync.WaitGroup) {
+	if _, err := io.Copy(dst, src); err != nil {
 		ctx.Warnf("Error copying to client: %s", err)
 	}
-	if err := r.Close(); err != nil && connOk {
-		ctx.Warnf("Error closing: %s", err)
+	wg.Done()
+}
+
+func copyAndClose(ctx *ProxyCtx, dst, src *net.TCPConn) {
+	if _, err := io.Copy(dst, src); err != nil {
+		ctx.Warnf("Error copying to client: %s", err)
 	}
+
+	dst.CloseWrite()
+	src.CloseRead()
 }

 func dialerFromEnv(proxy *ProxyHttpServer) func(network, addr string) (net.Conn, error) {
@@ -305,8 +341,12 @@ func (proxy *ProxyHttpServer) NewConnectDialToProxy(https_proxy string) func(net
 				c.Close()
 				return nil, err
 			}
+			defer resp.Body.Close()
 			if resp.StatusCode != 200 {
-				resp, _ := ioutil.ReadAll(resp.Body)
+				resp, err := ioutil.ReadAll(resp.Body)
+				if err != nil {
+					return nil, err
+				}
 				c.Close()
 				return nil, errors.New("proxy refused connection" + string(resp))
 			}
@@ -339,9 +379,12 @@ func (proxy *ProxyHttpServer) NewConnectDialToProxy(https_proxy string) func(net
 				c.Close()
 				return nil, err
 			}
+			defer resp.Body.Close()
 			if resp.StatusCode != 200 {
-				body, _ := ioutil.ReadAll(io.LimitReader(resp.Body, 500))
-				resp.Body.Close()
+				body, err := ioutil.ReadAll(io.LimitReader(resp.Body, 500))
+				if err != nil {
+					return nil, err
+				}
 				c.Close()
 				return nil, errors.New("proxy refused connection" + string(body))
 			}
--- a/vendor/github.com/elazarl/goproxy/proxy.go
+++ b/vendor/github.com/elazarl/goproxy/proxy.go
@@ -78,7 +78,7 @@ func removeProxyHeaders(ctx *ProxyCtx, r *http.Request) {
 	// and would wrap the response body with the relevant reader.
 	r.Header.Del("Accept-Encoding")
 	// curl can add that, see
-	// http://homepage.ntlworld.com/jonathan.deboynepollard/FGA/web-proxy-connection-header.html
+	// https://jdebp.eu./FGA/web-proxy-connection-header.html
 	r.Header.Del("Proxy-Connection")
 	r.Header.Del("Proxy-Authenticate")
 	r.Header.Del("Proxy-Authorization")
@@ -123,7 +123,7 @@ func (proxy *ProxyHttpServer) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		}
 		origBody := resp.Body
 		resp = proxy.filterResponse(resp, ctx)
-
+		defer origBody.Close()
 		ctx.Logf("Copying response to client %v [%d]", resp.Status, resp.StatusCode)
 		// http.ResponseWriter will take care of filling the correct response length
 		// Setting it now, might impose wrong value, contradicting the actual new