feat: remove writable gateway (#9743)

Co-authored-by: Marcin Rataj <lidel@lidel.org>

cmd/ipfs/daemon.go

@@ -163,7 +163,7 @@ Headers.
 		cmds.StringOption(initProfileOptionKwd, "Configuration profiles to apply for --init. See ipfs init --help for more"),
 		cmds.StringOption(routingOptionKwd, "Overrides the routing option").WithDefault(routingOptionDefaultKwd),
 		cmds.BoolOption(mountKwd, "Mounts IPFS to the filesystem using FUSE (experimental)"),
-		cmds.BoolOption(writableKwd, "Enable legacy Gateway.Writable (deprecated)"),
+		cmds.BoolOption(writableKwd, "Enable legacy Gateway.Writable (REMOVED)"),
 		cmds.StringOption(ipfsMountKwd, "Path to the mountpoint for IPFS (if using --mount). Defaults to config setting."),
 		cmds.StringOption(ipnsMountKwd, "Path to the mountpoint for IPNS (if using --mount). Defaults to config setting."),
 		cmds.BoolOption(unrestrictedAPIAccessKwd, "Allow API access to unlisted hashes"),
@@ -679,7 +679,7 @@ func serveHTTPApi(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, error
 
 	for _, listener := range listeners {
 		// we might have listened to /tcp/0 - let's see what we are listing on
-		fmt.Printf("API server listening on %s\n", listener.Multiaddr())
+		fmt.Printf("RPC API server listening on %s\n", listener.Multiaddr())
 		// Browsers require TCP.
 		switch listener.Addr().Network() {
 		case "tcp", "tcp4", "tcp6":
@@ -692,9 +692,9 @@ func serveHTTPApi(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, error
 	// only the webui objects are allowed.
 	// if you know what you're doing, go ahead and pass --unrestricted-api.
 	unrestricted, _ := req.Options[unrestrictedAPIAccessKwd].(bool)
-	gatewayOpt := corehttp.GatewayOption(false, corehttp.WebUIPaths...)
+	gatewayOpt := corehttp.GatewayOption(corehttp.WebUIPaths...)
 	if unrestricted {
-		gatewayOpt = corehttp.GatewayOption(true, "/ipfs", "/ipns")
+		gatewayOpt = corehttp.GatewayOption("/ipfs", "/ipns")
 	}
 
 	var opts = []corehttp.ServeOption{
@@ -804,7 +804,7 @@ func serveHTTPGateway(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, e
 	}
 
 	if writable {
-		log.Error("serveHTTPGateway: legacy Gateway.Writable is DEPRECATED and will be removed or changed in future versions. If you are still using this, provide feedback in https://github.com/ipfs/specs/issues/375")
+		log.Fatalf("Support for Gateway.Writable and --writable has been REMOVED. Please remove it from your config file or CLI. Modern replacement tracked in https://github.com/ipfs/specs/issues/375")
 	}
 
 	listeners, err := sockets.TakeListeners("io.ipfs.gateway")
@@ -837,13 +837,8 @@ func serveHTTPGateway(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, e
 	}
 
 	// we might have listened to /tcp/0 - let's see what we are listing on
-	gwType := "readonly"
-	if writable {
-		gwType = "writable"
-	}
-
 	for _, listener := range listeners {
-		fmt.Printf("Gateway (%s) server listening on %s\n", gwType, listener.Multiaddr())
+		fmt.Printf("Gateway server listening on %s\n", listener.Multiaddr())
 	}
 
 	cmdctx := *cctx
@@ -852,7 +847,7 @@ func serveHTTPGateway(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, e
 	var opts = []corehttp.ServeOption{
 		corehttp.MetricsCollectionOption("gateway"),
 		corehttp.HostnameOption(),
-		corehttp.GatewayOption(writable, "/ipfs", "/ipns"),
+		corehttp.GatewayOption("/ipfs", "/ipns"),
 		corehttp.VersionOption(),
 		corehttp.CheckVersionOption(),
 		corehttp.CommandsROOption(cmdctx),

cmd/ipfswatch/main.go

@@ -94,7 +94,7 @@ func run(ipfsPath, watchPath string) error {
 	if *http {
 		addr := "/ip4/127.0.0.1/tcp/5001"
 		var opts = []corehttp.ServeOption{
-			corehttp.GatewayOption(true, "/ipfs", "/ipns"),
+			corehttp.GatewayOption("/ipfs", "/ipns"),
 			corehttp.WebUIOption,
 			corehttp.CommandsOption(cmdCtx(node, ipfsPath)),
 		}

config/gateway.go

@@ -38,8 +38,7 @@ type Gateway struct {
 	// should be redirected.
 	RootRedirect string
 
-	// DEPRECATED: Enables legacy PUT/POST request handling.
-	// Modern replacement tracked in https://github.com/ipfs/specs/issues/375
+	// REMOVED: modern replacement tracked in https://github.com/ipfs/specs/issues/375
 	Writable Flag `json:",omitempty"`
 
 	// PathPrefixes was removed: https://github.com/ipfs/go-ipfs/issues/7702

core/corehttp/corehttp.go

@@ -75,7 +75,7 @@ func ListenAndServe(n *core.IpfsNode, listeningMultiAddr string, options ...Serv
 
 	// we might have listened to /tcp/0 - let's see what we are listing on
 	addr = list.Multiaddr()
-	fmt.Printf("API server listening on %s\n", addr)
+	fmt.Printf("RPC API server listening on %s\n", addr)
 
 	return Serve(n, manet.NetListener(list), options...)
 }

core/corehttp/gateway.go

@@ -24,18 +24,13 @@ import (
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
 )
 
-func GatewayOption(writable bool, paths ...string) ServeOption {
+func GatewayOption(paths ...string) ServeOption {
 	return func(n *core.IpfsNode, _ net.Listener, mux *http.ServeMux) (*http.ServeMux, error) {
 		cfg, err := n.Repo.Config()
 		if err != nil {
 			return nil, err
 		}
 
-		api, err := coreapi.NewCoreAPI(n, options.Api.FetchBlocks(!cfg.Gateway.NoFetch))
-		if err != nil {
-			return nil, err
-		}
-
 		headers := make(map[string][]string, len(cfg.Gateway.HTTPHeaders))
 		for h, v := range cfg.Gateway.HTTPHeaders {
 			headers[http.CanonicalHeaderKey(h)] = v
@@ -58,28 +53,6 @@ func GatewayOption(writable bool, paths ...string) ServeOption {
 		// By default, our HTTP handler is the gateway handler.
 		handler := gw.ServeHTTP
 
-		// If we have the writable gateway enabled, we have to replace our
-		// http handler by a handler that takes care of the different methods.
-		if writable {
-			writableGw := &writableGatewayHandler{
-				config: &gwConfig,
-				api:    api,
-			}
-
-			handler = func(w http.ResponseWriter, r *http.Request) {
-				switch r.Method {
-				case http.MethodPost:
-					writableGw.postHandler(w, r)
-				case http.MethodDelete:
-					writableGw.deleteHandler(w, r)
-				case http.MethodPut:
-					writableGw.putHandler(w, r)
-				default:
-					gw.ServeHTTP(w, r)
-				}
-			}
-		}
-
 		for _, p := range paths {
 			mux.HandleFunc(p+"/", handler)
 		}

core/corehttp/gateway_test.go

@@ -124,7 +124,7 @@ func newTestServerAndNode(t *testing.T, ns mockNamesys) (*httptest.Server, iface
 	dh.Handler, err = makeHandler(n,
 		ts.Listener,
 		HostnameOption(),
-		GatewayOption(false, "/ipfs", "/ipns"),
+		GatewayOption("/ipfs", "/ipns"),
 		VersionOption(),
 	)
 	if err != nil {