Read the Original request

Måñðj Kµmår

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Mar 2, 2016, 6:03:03 AM3/2/16

to LittleProxy

Is it possible to read the original request that we get? For instance if I override with

public HttpFilters filterRequest(final HttpRequest originalRequest, ChannelHandlerContext ctx) --> I am not able to get the complete details from the originalRequest (ie. URI + headers + body with any content, get/post/any payload).

Is there a way to open the requests and read them at this level (or at any point before forwarding to the server)?

Måñðj Kµmår

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Mar 2, 2016, 9:54:57 AM3/2/16

to LittleProxy

I have added

@Override
	public int getMaximumRequestBufferSizeInBytes() {
	return 512 * 1024;
	} But I am not getting any content in the request. It is a SOAP call that is made. How can I read a SOAP payload?

Måñðj Kµmår

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Mar 2, 2016, 10:08:07 AM3/2/16

to LittleProxy

Did a little more debugging. The SOAP calls are made from within my web application. When I checked the method from little proxy, am recording only CONNECT methods here. Is this how usually SOAP call are seen in a proxy?

Is there any other way to read the request that I am sending?

Måñðj Kµmår

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Mar 3, 2016, 9:06:02 AM3/3/16

to LittleProxy

Ok. I've used the little-proxy mitm and am now able to see the complete requests that are made with the payload. But, now I am stuck with and error message,

java.lang.UnsupportedOperationException: unsupported message type: DefaultFullHttpResponse (expected: ByteBuf, FileRegion)

I am a complete newbie to Proxies and netty as well. I was hoping that it would be easier with the filters in littleproxy.

Anyway any ideas on this is really appreciated. It will also be helpful if you even point me in the right direction, to take it up from here, if I have to write pipeline in netty. A zero-point start will be really helpful.

Sivasubramaniam Sivakumar

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Mar 3, 2016, 11:31:36 AM3/3/16

to littl...@googlegroups.com

Hi,

Littleproxy-mitm should work without any changes to the netty pipeline. Can you please post your bootstrap and filter code? I can check.

Thanks

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Måñðj Kµmår

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Mar 3, 2016, 2:15:33 PM3/3/16

to LittleProxy

I had not added any code. I am using the examples to start.

Anyway, my bootstrap is

/* using the default MITM params */

DefaultHttpProxyServer.bootstrap()

.withPort(PORT)

.withManInTheMiddle(new CertificateSniffingMitmManager(new Authority(new File("the key store path which has the .pem file")

,"littleproxy-mitm"

,"Be Your Own Lantern".toCharArray()

,"LittleProxy-mitm"

,"littleproxy-mitm" + ", describe proxy here"

,"Certificate Authority"

,"littleproxy-mitm"

,"littleproxy-mitm"+ ", describe proxy purpose here, since Man-In-The-Middle is bad normally.")))

.withFiltersSource(filtersSource)

.withAllowLocalOnly(false)

.withName("AProxy")

.start();

The functions overridden in the filters are

public HttpResponse proxyToServerRequest(HttpObject httpObject) {

try {

if(httpObject instanceof FullHttpRequest) {

System.out.println(((FullHttpRequest) httpObject).getMethod()+":::"+((HttpRequest) httpObject).getUri());

if(((FullHttpRequest) httpObject).getUri().contains("EntitlementService")) {

/* I do not reach this point at all while executing */

System.out.println("Return my custom reponse");

//I make a call to a localhost service and return that response here.

}

else {

return null;

}

catch(UnsupportedOperationException e) {

return null;

}

and

public int getMaximumRequestBufferSizeInBytes() {

return 100*1024;

}

I do not reach a point where I am try to filter my requests at all. The stack trace is

22492 2016-03-03 19:48:53,445 ERROR [FilteringProxy-ClientToProxyWorker-3] impl.ClientToProxyConnection (?:?).?() - (AWAITING_INITIAL) [id: 0x4cd1d95a, /0:0:0:0:0:0:0:1:23868 => /0:0:0:0:0:0:0:1:9999]: Caught an exception on ClientToProxyConnection

java.lang.UnsupportedOperationException: unsupported message type: DefaultFullHttpResponse (expected: ByteBuf, FileRegion)

at io.netty.channel.nio.AbstractNioByteChannel.filterOutboundMessage(AbstractNioByteChannel.java:276)

at io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:654)

at io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1054)

at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658)

at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716)

at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:651)

at io.netty.channel.PendingWriteQueue.removeAndWrite(PendingWriteQueue.java:186)

at io.netty.handler.ssl.SslHandler.wrap(SslHandler.java:447)

at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:432)

at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:688)

at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:718)

at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:706)

at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:741)

at io.netty.handler.codec.http.HttpObjectAggregator.decode(HttpObjectAggregator.java:131)

at io.netty.handler.codec.http.HttpObjectAggregator.decode(HttpObjectAggregator.java:54)

at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)