feat(global): introduce user teams and new UAC system (#868)

api/http/proxy/socket.go

@@ -0,0 +1,40 @@
+package proxy
+
+// unixSocketHandler represents a handler to proxy HTTP requests via a unix:// socket
+import (
+	"io"
+	"net/http"
+
+	httperror "github.com/portainer/portainer/http/error"
+)
+
+type socketProxy struct {
+	Transport *proxyTransport
+}
+
+func (proxy *socketProxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// Force URL/domain to http/unixsocket to be able to
+	// use http.Transport RoundTrip to do the requests via the socket
+	r.URL.Scheme = "http"
+	r.URL.Host = "unixsocket"
+
+	res, err := proxy.Transport.proxyDockerRequest(r)
+	if err != nil {
+		code := http.StatusInternalServerError
+		if res != nil && res.StatusCode != 0 {
+			code = res.StatusCode
+		}
+		httperror.WriteErrorResponse(w, err, code, nil)
+		return
+	}
+	defer res.Body.Close()
+
+	for k, vv := range res.Header {
+		for _, v := range vv {
+			w.Header().Add(k, v)
+		}
+	}
+	if _, err := io.Copy(w, res.Body); err != nil {
+		httperror.WriteErrorResponse(w, err, http.StatusInternalServerError, nil)
+	}
+}