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Code Issues Releases Wiki Activity

Improve error message for SSL failures

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Fixes #803
This commit is contained in:
Jonathan Coates 2021-06-01 22:08:52 +01:00
parent c40a13558c
commit c2190e1318
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GPG Key ID: B9E431FF07C98D06
5 changed files with 38 additions and 53 deletions
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32
src/main/java/dan200/computercraft/core/apis/http/NetworkUtils.java
View File

@ -11,12 +11,19 @@ import dan200.computercraft.core.apis.http.options.AddressRule;
import dan200.computercraft.core.apis.http.options.Options;
import dan200.computercraft.shared.util.ThreadUtils;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ConnectTimeoutException;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.handler.codec.DecoderException;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.handler.codec.http.websocketx.WebSocketHandshakeException;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.timeout.ReadTimeoutException;
import javax.annotation.Nonnull;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.TrustManagerFactory;
import java.net.InetSocketAddress;
import java.net.URI;
@ -161,4 +168,29 @@ public final class NetworkUtils
buffer.readBytes( bytes );
return bytes;
}
@Nonnull
public static String toFriendlyError( @Nonnull Throwable cause )
{
if( cause instanceof WebSocketHandshakeException || cause instanceof HTTPRequestException )
{
return cause.getMessage();
}
else if( cause instanceof TooLongFrameException )
{
return "Message is too large";
}
else if( cause instanceof ReadTimeoutException || cause instanceof ConnectTimeoutException )
{
return "Timed out";
}
else if( cause instanceof SSLHandshakeException || (cause instanceof DecoderException && cause.getCause() instanceof SSLHandshakeException) )
{
return "Could not create a secure connection";
}
else
{
return "Could not connect";
}
}
}

30
src/main/java/dan200/computercraft/core/apis/http/request/HttpRequest.java
View File

@ -19,13 +19,10 @@ import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.ConnectTimeoutException;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.handler.codec.http.*;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.timeout.ReadTimeoutException;
import io.netty.handler.timeout.ReadTimeoutHandler;
import java.net.InetSocketAddress;
@ -190,7 +187,7 @@ public class HttpRequest extends Resource<HttpRequest>
.remoteAddress( socketAddress )
.connect()
.addListener( c -> {
if( !c.isSuccess() ) failure( c.cause() );
if( !c.isSuccess() ) failure( NetworkUtils.toFriendlyError( c.cause() ) );
} );
// Do an additional check for cancellation
@ -202,7 +199,7 @@ public class HttpRequest extends Resource<HttpRequest>
}
catch( Exception e )
{
failure( "Could not connect" );
failure( NetworkUtils.toFriendlyError( e ) );
if( ComputerCraft.logComputerErrors ) ComputerCraft.log.error( "Error in HTTP request", e );
}
}
@ -212,29 +209,6 @@ public class HttpRequest extends Resource<HttpRequest>
if( tryClose() ) environment.queueEvent( FAILURE_EVENT, address, message );
}
void failure( Throwable cause )
{
String message;
if( cause instanceof HTTPRequestException )
{
message = cause.getMessage();
}
else if( cause instanceof TooLongFrameException )
{
message = "Response is too large";
}
else if( cause instanceof ReadTimeoutException || cause instanceof ConnectTimeoutException )
{
message = "Timed out";
}
else
{
message = "Could not connect";
}
failure( message );
}
void failure( String message, HttpResponseHandle object )
{
if( tryClose() ) environment.queueEvent( FAILURE_EVENT, address, message, object );

2
src/main/java/dan200/computercraft/core/apis/http/request/HttpRequestHandler.java
View File

@ -183,7 +183,7 @@ public final class HttpRequestHandler extends SimpleChannelInboundHandler<HttpOb
public void exceptionCaught( ChannelHandlerContext ctx, Throwable cause )
{
if( ComputerCraft.logComputerErrors ) ComputerCraft.log.error( "Error handling HTTP response", cause );
request.failure( cause );
request.failure( NetworkUtils.toFriendlyError( cause ) );
}
private void sendResponse()

4
src/main/java/dan200/computercraft/core/apis/http/websocket/Websocket.java
View File

@ -166,7 +166,7 @@ public class Websocket extends Resource<Websocket>
.remoteAddress( socketAddress )
.connect()
.addListener( c -> {
if( !c.isSuccess() ) failure( c.cause().getMessage() );
if( !c.isSuccess() ) failure( NetworkUtils.toFriendlyError( c.cause() ) );
} );
// Do an additional check for cancellation
@ -178,7 +178,7 @@ public class Websocket extends Resource<Websocket>
}
catch( Exception e )
{
failure( "Could not connect" );
failure( NetworkUtils.toFriendlyError( e ) );
if( ComputerCraft.logComputerErrors ) ComputerCraft.log.error( "Error in websocket", e );
}
}

23
src/main/java/dan200/computercraft/core/apis/http/websocket/WebsocketHandler.java
View File

@ -5,17 +5,13 @@
*/
package dan200.computercraft.core.apis.http.websocket;
import dan200.computercraft.core.apis.http.HTTPRequestException;
import dan200.computercraft.core.apis.http.NetworkUtils;
import dan200.computercraft.core.apis.http.options.Options;
import dan200.computercraft.core.tracking.TrackingField;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ConnectTimeoutException;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.websocketx.*;
import io.netty.handler.timeout.ReadTimeoutException;
import io.netty.util.CharsetUtil;
import static dan200.computercraft.core.apis.http.websocket.Websocket.MESSAGE_EVENT;
@ -97,24 +93,7 @@ public class WebsocketHandler extends SimpleChannelInboundHandler<Object>
{
ctx.close();
String message;
if( cause instanceof WebSocketHandshakeException || cause instanceof HTTPRequestException )
{
message = cause.getMessage();
}
else if( cause instanceof TooLongFrameException )
{
message = "Message is too large";
}
else if( cause instanceof ReadTimeoutException || cause instanceof ConnectTimeoutException )
{
message = "Timed out";
}
else
{
message = "Could not connect";
}
String message = NetworkUtils.toFriendlyError( cause );
if( handshaker.isHandshakeComplete() )
{
websocket.close( -1, message );