Use go-libp2p-http

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>

core/corehttp/proxy.go

@@ -1,19 +1,17 @@
 package corehttp
 
 import (
-	"bufio"
 	"fmt"
-	"io"
 	"net"
 	"net/http"
 	"net/http/httputil"
+	"net/url"
 	"strings"
 
 	core "github.com/ipfs/go-ipfs/core"
 
 	protocol "gx/ipfs/QmZNkThpqfVXs9GNbexPrfBbXSLNYeKrE7jwFM2oqHbyqN/go-libp2p-protocol"
-	peer "gx/ipfs/QmbNepETomvmXfz1X5pHNFD2QuPqnqi47dTd94QJWSorQ3/go-libp2p-peer"
-	inet "gx/ipfs/QmfDPh144WGBqRxZb1TGDHerbMnZATrHZggAPw7putNnBq/go-libp2p-net"
+	p2phttp "gx/ipfs/QmcLYfmHLsaVRKGMZQovwEYhHAjWtRjg1Lij3pnzw5UkRD/go-libp2p-http"
 )
 
 // ProxyOption is an endpoint for proxying a HTTP request to another ipfs peer
@@ -27,23 +25,24 @@ func ProxyOption() ServeOption {
 				return
 			}
 
-			// open connect to peer
-			stream, err := ipfsNode.P2P.PeerHost.NewStream(request.Context(), parsedRequest.target, protocol.ID("/x/"+parsedRequest.name))
+			target, err := url.Parse(fmt.Sprintf("libp2p://%s/%s", parsedRequest.target, parsedRequest.httpPath))
 			if err != nil {
-				msg := fmt.Sprintf("Failed to open stream '%v' to target peer '%v'", parsedRequest.name, parsedRequest.target)
-				handleError(w, msg, err, 500)
+				handleError(w, "Failed to parse url", err, 400)
 				return
 			}
-			//send proxy request and response to client
-			newReverseHTTPProxy(parsedRequest, stream).ServeHTTP(w, request)
+
+			rt := p2phttp.NewTransport(ipfsNode.P2P.PeerHost, p2phttp.ProtocolOption(parsedRequest.name))
+			proxy := httputil.NewSingleHostReverseProxy(target)
+			proxy.Transport = rt
+			proxy.ServeHTTP(w, request)
 		})
 		return mux, nil
 	}
 }
 
 type proxyRequest struct {
-	target   peer.ID
-	name     string
+	target   string
+	name     protocol.ID
 	httpPath string // path to send to the proxy-host
 }
 
@@ -57,13 +56,7 @@ func parseRequest(request *http.Request) (*proxyRequest, error) {
 		return nil, fmt.Errorf("Invalid request path '%s'", path)
 	}
 
-	peerID, err := peer.IDB58Decode(split[3])
-
-	if err != nil {
-		return nil, err
-	}
-
-	return &proxyRequest{peerID, split[4], "/" + split[5]}, nil
+	return &proxyRequest{split[3], protocol.ID(split[4]), "/" + split[5]}, nil
 }
 
 func handleError(w http.ResponseWriter, msg string, err error, code int) {
@@ -71,62 +64,3 @@ func handleError(w http.ResponseWriter, msg string, err error, code int) {
 	fmt.Fprintf(w, "%s: %s\n", msg, err)
 	log.Warningf("server error: %s: %s", err)
 }
-
-func newReverseHTTPProxy(req *proxyRequest, streamToPeer inet.Stream) *httputil.ReverseProxy {
-	director := func(r *http.Request) {
-		r.URL.Path = req.httpPath //the scheme etc. doesn't matter
-	}
-
-	return &httputil.ReverseProxy{
-		Director:  director,
-		Transport: &roundTripper{streamToPeer}}
-}
-
-type roundTripper struct {
-	stream inet.Stream
-}
-
-// we wrap the response body and close the stream
-// only when it's closed.
-type respBody struct {
-	io.ReadCloser
-	stream inet.Stream
-}
-
-// Closes the response's body and the connection.
-func (rb *respBody) Close() error {
-	if err := rb.stream.Close(); err != nil {
-		rb.stream.Reset()
-	} else {
-		go inet.AwaitEOF(rb.stream)
-	}
-	return rb.ReadCloser.Close()
-}
-
-func (rt *roundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-
-	sendRequest := func() {
-		err := req.Write(rt.stream)
-		if err != nil {
-			rt.stream.Close()
-		}
-		if req.Body != nil {
-			req.Body.Close()
-		}
-	}
-	//send request while reading response
-	go sendRequest()
-	s := bufio.NewReader(rt.stream)
-
-	resp, err := http.ReadResponse(s, req)
-	if err != nil {
-		return resp, err
-	}
-
-	resp.Body = &respBody{
-		ReadCloser: resp.Body,
-		stream:     rt.stream,
-	}
-
-	return resp, nil
-}

package.json

@@ -592,6 +592,12 @@
       "hash": "QmTqLBwme9BusYWdACqL62NFb8WV2Q72gXLsQVfC7vmCr4",
       "name": "iptb-plugins",
       "version": "1.0.5"
+    },
+    {
+      "author": "hsanjuan",
+      "hash": "QmcLYfmHLsaVRKGMZQovwEYhHAjWtRjg1Lij3pnzw5UkRD",
+      "name": "go-libp2p-http",
+      "version": "1.1.8"
     }
   ],
   "gxVersion": "0.10.0",