chore: fix undiallable api and gateway files

Fixes #9232

Author: Jorropo

cmd/ipfs/daemon.go

@@ -673,8 +673,8 @@ func serveHTTPApi(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, error
 		return nil, fmt.Errorf("serveHTTPApi: ConstructNode() failed: %s", err)
 	}
 
-	if err := node.Repo.SetAPIAddr(listeners[0].Multiaddr()); err != nil {
-		return nil, fmt.Errorf("serveHTTPApi: SetAPIAddr() failed: %s", err)
+	if err := node.Repo.SetAPIAddr(rewriteMaddrToUseLocalhostIfItsAny(listeners[0].Multiaddr())); err != nil {
+		return nil, fmt.Errorf("serveHTTPApi: SetAPIAddr() failed: %w", err)
 	}
 
 	errc := make(chan error)
@@ -695,6 +695,19 @@ func serveHTTPApi(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, error
 	return errc, nil
 }
 
+func rewriteMaddrToUseLocalhostIfItsAny(maddr ma.Multiaddr) ma.Multiaddr {
+	first, rest := ma.SplitFirst(maddr)
+
+	switch {
+	case first.Equal(manet.IP4Unspecified):
+		return manet.IP4Loopback.Encapsulate(rest)
+	case first.Equal(manet.IP6Unspecified):
+		return manet.IP6Loopback.Encapsulate(rest)
+	default:
+		return maddr // not ip
+	}
+}
+
 // printSwarmAddrs prints the addresses of the host
 func printSwarmAddrs(node *core.IpfsNode) {
 	if !node.IsOnline {
@@ -808,7 +821,11 @@ func serveHTTPGateway(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, e
 	}
 
 	if len(listeners) > 0 {
-		if err := node.Repo.SetGatewayAddr(listeners[0].Addr()); err != nil {
+		addr, err := manet.ToNetAddr(rewriteMaddrToUseLocalhostIfItsAny(listeners[0].Multiaddr()))
+		if err != nil {
+			return nil, fmt.Errorf("serveHTTPGateway: manet.ToIP() failed: %w", err)
+		}
+		if err := node.Repo.SetGatewayAddr(addr); err != nil {
 			return nil, fmt.Errorf("serveHTTPGateway: SetGatewayAddr() failed: %w", err)
 		}
 	}
@@ -831,7 +848,7 @@ func serveHTTPGateway(req *cmds.Request, cctx *oldcmds.Context) (<-chan error, e
 	return errc, nil
 }
 
-//collects options and opens the fuse mountpoint
+// collects options and opens the fuse mountpoint
 func mountFuse(req *cmds.Request, cctx *oldcmds.Context) error {
 	cfg, err := cctx.GetConfig()
 	if err != nil {

test/sharness/t0064-api-file.sh

@@ -97,4 +97,16 @@ test_expect_success "pin ls fails when daemon is running but API file is missing
 
 test_kill_ipfs_daemon
 
+APIPORT=32563
+
+test_expect_success "Verify gateway file diallable while on unspecified" '
+  ipfs config Addresses.API /ip4/0.0.0.0/tcp/$APIPORT &&
+  test_launch_ipfs_daemon &&
+  cat "$IPFS_PATH/api" > api_file_actual &&
+  echo -n "/ip4/127.0.0.1/tcp/$APIPORT" > api_file_expected &&
+  test_cmp api_file_expected api_file_actual
+'
+
+test_kill_ipfs_daemon
+
 test_done

test/sharness/t0110-gateway.sh

@@ -288,16 +288,25 @@ test_expect_success "GET compact blocks succeeds" '
 '
 
 test_expect_success "Verify gateway file" '
-  cat "$IPFS_PATH/gateway" >> gateway_file_actual &&
-  echo -n "http://$GWAY_ADDR" >> gateway_daemon_actual &&
+  cat "$IPFS_PATH/gateway" > gateway_file_actual &&
+  echo -n "http://$GWAY_ADDR" > gateway_daemon_actual &&
   test_cmp gateway_daemon_actual gateway_file_actual
 '
 
 test_kill_ipfs_daemon
 
-
 GWPORT=32563
 
+test_expect_success "Verify gateway file diallable while on unspecified" '
+  ipfs config Addresses.Gateway /ip4/0.0.0.0/tcp/$GWPORT &&
+  test_launch_ipfs_daemon &&
+  cat "$IPFS_PATH/gateway" > gateway_file_actual &&
+  echo -n "http://127.0.0.1:$GWPORT" > gateway_file_expected &&
+  test_cmp gateway_file_expected gateway_file_actual
+'
+
+test_kill_ipfs_daemon
+
 test_expect_success "set up iptb testbed" '
   iptb testbed create -type localipfs -count 5 -force -init &&
   ipfsi 0 config Addresses.Gateway /ip4/127.0.0.1/tcp/$GWPORT &&