1 files changed, 43 insertions, 0 deletions
diff --git a/plumbing/transport/http/internal/test/test_utils.go b/plumbing/transport/http/internal/test/test_utils.go
new file mode 100644
index 0000000..6665fb3
--- /dev/null
+++ b/plumbing/transport/http/internal/test/test_utils.go
@@ -0,0 +1,43 @@
+package test
+
+import (
+	"encoding/base64"
+	"strings"
+	"sync/atomic"
+
+	"github.com/elazarl/goproxy"
+)
+
+func SetupHTTPSProxy(proxy *goproxy.ProxyHttpServer, proxiedRequests *int32) {
+	var proxyHandler goproxy.FuncHttpsHandler = func(host string, ctx *goproxy.ProxyCtx) (*goproxy.ConnectAction, string) {
+		if strings.Contains(host, "github.com") {
+			user, pass, _ := ParseBasicAuth(ctx.Req.Header.Get("Proxy-Authorization"))
+			if user != "user" || pass != "pass" {
+				return goproxy.RejectConnect, host
+			}
+			atomic.AddInt32(proxiedRequests, 1)
+			return goproxy.OkConnect, host
+		}
+		// Reject if it isn't our request.
+		return goproxy.RejectConnect, host
+	}
+	proxy.OnRequest().HandleConnect(proxyHandler)
+}
+
+// adapted from https://github.com/golang/go/blob/2ef70d9d0f98832c8103a7968b195e560a8bb262/src/net/http/request.go#L959
+func ParseBasicAuth(auth string) (username, password string, ok bool) {
+	const prefix = "Basic "
+	if len(auth) < len(prefix) || !strings.EqualFold(auth[:len(prefix)], prefix) {
+		return "", "", false
+	}
+	c, err := base64.StdEncoding.DecodeString(auth[len(prefix):])
+	if err != nil {
+		return "", "", false
+	}
+	cs := string(c)
+	username, password, ok = strings.Cut(cs, ":")
+	if !ok {
+		return "", "", false
+	}
+	return username, password, true
+}