Always 400 Bad Request to URI

[常潇]

Hi 

Now i have used littleporxy(version 1.1.0). i started a server with port(8082),then the littleproxy proxy it through port(8080).I visit http://127.0.0.1:8080/test by browser,the result is always Bad Request to URI: /test.
But i can visit http://127.0.0.1:8082/test,the result is correct. 
    
	
public static void main(String[] args) throws Exception{

	final ChainedProxyAdapter adapter = new ChainedProxyAdapter() {
		@Override
		public InetSocketAddress getChainedProxyAddress() {
			return new InetSocketAddress("127.0.0.1",8082);
		}
	};
	ChainedProxyManager manager = new ChainedProxyManager() {

		@Override
		public void lookupChainedProxies(HttpRequest httpRequest, Queue<ChainedProxy> chainedProxies) {

			chainedProxies.add(adapter);
		}
	};
	HttpProxyServerBootstrap boostrap = DefaultHttpProxyServer.bootstrap();
	boostrap.withAllowLocalOnly(false)
			.withPort(8080)
			.withName("gateway")
			.withTransportProtocol(TransportProtocol.TCP).withChainProxyManager(manager).start();

}


I hava found the uncorrect source of littleporxy,like the method of ClientToProxyConnection

private static final Pattern HTTP_SCHEME = Pattern.compile("^http://.*", Pattern.CASE_INSENSITIVE);


 // short-circuit requests that treat the proxy as the "origin" server, to avoid infinite loops
        if (isRequestToOriginServer(httpRequest)) {
            boolean keepAlive = writeBadRequest(httpRequest);
            if (keepAlive) {
                return AWAITING_INITIAL;
            } else {
                return DISCONNECT_REQUESTED;
            }
        }

private boolean isRequestToOriginServer(HttpRequest httpRequest) {
        // while MITMing, all HTTPS requests are requests to the origin server, since the client does not know
        // the request is being MITM'd by the proxy
        if (httpRequest.getMethod() == HttpMethod.CONNECT || isMitming()) {
            return false;
        }

        // direct requests to the proxy have the path only without a scheme
        String uri = httpRequest.getUri();

        return !HTTP_SCHEME.matcher(uri).matches();
    }

Now the value of httpRequest.getUri() always start with "/",HTTP_SCHEME is defined by starting "http://",so !HTTP_SCHEME.matcher(uri).matches() is always wrong.
And the method of isRequestToOriginServer(httpRequest) is always true,so the response is writeBadRequest(httpRequest) that is Bad Request to URI: /test

Thanks

[Jeryl Cook]

you should configure the client to use a proxy...

for example

wget https://facebook.com/index.html -e use_proxy on -e https_proxy= http://127.0.0.1:8082 -ca-crt=/mitm.cer