Revert "websocket: Don't limit message sizes in the websocket reader (#…

…2193)"

This reverts commit 2fe6600.

p2p/transport/websocket/conn.go

@@ -31,6 +31,7 @@ func (c conn) Read(b []byte) (int, error) {
 	if err == nil && n == 0 && c.readAttempts < maxReadAttempts {
 		c.readAttempts++
 		// Nothing happened, let's read again. We reached the end of the frame
+		// we have
 		// (https://github.com/nhooyr/websocket/blob/master/netconn.go#L118).
 		// The next read will block until we get
 		// the next frame. We limit here to avoid looping in case of a bunch of

p2p/transport/websocket/listener.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/tls"
 	"fmt"
-	"math"
 	"net"
 	"net/http"
 	"net/url"
@@ -110,10 +109,6 @@ func (l *listener) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Set an arbitrarily large read limit since we don't actually want to limit the message size here.
-	// See https://github.com/nhooyr/websocket/issues/382 for details.
-	c.SetReadLimit(math.MaxInt64 - 1) // -1 because the library adds a byte for the fin frame
-
 	select {
 	case l.incoming <- conn{
 		Conn: ws.NetConn(context.Background(), c, ws.MessageBinary),

p2p/transport/websocket/websocket.go

@@ -5,7 +5,6 @@ import (
 	"context"
 	"crypto/tls"
 	"fmt"
-	"math"
 	"net"
 	"net/http"
 	"net/url"
@@ -251,8 +250,6 @@ func (t *WebsocketTransport) maDial(ctx context.Context, raddr ma.Multiaddr) (ma
 		return nil, fmt.Errorf("failed to get local address")
 	}
 
-	// Set an arbitrarily large read limit since we don't actually want to limit the message size here.
-	wscon.SetReadLimit(math.MaxInt64 - 1) // -1 because the library adds a byte for the fin frame
 	mnc, err := manet.WrapNetConn(
 		conn{
 			Conn:       ws.NetConn(context.Background(), wscon, ws.MessageBinary),