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Posted to httpclient-users@hc.apache.org by Vicky <vi...@gmail.com> on 2014/03/13 16:37:36 UTC
Queries around Http Client Proxy
Hi,
I am using HttpClient 4.0.1. And trying to get proxy working with my SSL
based http client. Unfortunately i haven't been successful so far.
Could get a not secure http proxy working, but the problem is with https.
Can you provide any pointers to doing this.
I am using the following code for setting the proxy,
HttpHost proxy = new HttpHost("localhost", 5555);
httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
Any help is greatly appreciated.
Thanks,
Vicky
Re: Queries around Http Client Proxy
Posted by Vicky <vi...@gmail.com>.
Thanks Oleg. I am desperately looking for solution around this.
Basically, this has been part of our product for a while and being used in
multiple areas. So if i need to change to a newer version, there will be
too many reference changes to cater to.
I will be changing it, but need more cycle for that, which at this moment i
don't have.
As for trying out with one of the latest versions, i downloaded httpclient
4.3.3, this would be the latest.
Ran the example code in "ClientExecuteProxy.java". Just replaced the target
value from "localhost" to "issues.apache.org".
Test 1 - Commented the proxy bit. The example ran successfully.
Test 2 - Uncommented the proxy part, failed with the same error as in
4.0.1. So i don't think this is something to do with the latest version.
Getting the following exception in console when i run it,
Executing request GET / HTTP/1.1 to https://issues.apache.org:443 via
http://127.0.0.1:8080
Mar 14, 2014 5:56:05 PM org.apache.http.impl.execchain.RetryExec execute
INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when
processing request to
{tls}->http://127.0.0.1:8080->https://issues.apache.org:443: The target
server failed to respond
Mar 14, 2014 5:56:05 PM org.apache.http.impl.execchain.RetryExec execute
INFO: Retrying request to {tls}
->http://127.0.0.1:8080->https://issues.apache.org:443
Mar 14, 2014 5:56:06 PM org.apache.http.impl.execchain.RetryExec execute
INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when
processing request to
{tls}->http://127.0.0.1:8080->https://issues.apache.org:443: The target
server failed to respond
Mar 14, 2014 5:56:06 PM org.apache.http.impl.execchain.RetryExec execute
INFO: Retrying request to {tls}
->http://127.0.0.1:8080->https://issues.apache.org:443
Mar 14, 2014 5:56:07 PM org.apache.http.impl.execchain.RetryExec execute
INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when
processing request to
{tls}->http://127.0.0.1:8080->https://issues.apache.org:443: The target
server failed to respond
Mar 14, 2014 5:56:07 PM org.apache.http.impl.execchain.RetryExec execute
INFO: Retrying request to {tls}
->http://127.0.0.1:8080->https://issues.apache.org:443
Exception in thread "main" org.apache.http.NoHttpResponseException:
issues.apache.org:443 failed to respond
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:143)
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
at
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)
at
org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.http.impl.conn.CPoolProxy.invoke(CPoolProxy.java:138)
at com.sun.proxy.$Proxy0.receiveResponseHeader(Unknown Source)
at
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)
at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
at
org.apache.http.impl.execchain.MainClientExec.createTunnelToTarget(MainClientExec.java:455)
at
org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:115)
at com.httpclient3.TestClient.main(TestClient.java:41)
Note - For proxy, i am using tcpmon in proxy mode (no security) just
specifying the listen port.
I have posted my detailed code and usecase in stackover flow if you need
any references -
http://stackoverflow.com/questions/22343149/apache-http-client-4-0-1-ssl-proxy
or to my earlier post of this user lists.
Additionally in TCPmon(proxy), the HTTP communication observed was,
Incoming request
CONNECT issues.apache.org:443 HTTP/1.1
Response from the proxy
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at
java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:208)
at org.apache.ws.commons.tcpmon.Connection.run(Connection.java:372)
I hope this will provide you sufficient details to check whats going
wrong. Either the example are not working out of the box or i am not doing
something right.
Thanks,
Vikram
On Fri, Mar 14, 2014 at 4:15 PM, Oleg Kalnichevski <ol...@apache.org> wrote:
> On Thu, 2014-03-13 at 21:07 +0530, Vicky wrote:
> > Hi,
> >
> > I am using HttpClient 4.0.1. And trying to get proxy working with my SSL
> > based http client. Unfortunately i haven't been successful so far.
> >
> > Could get a not secure http proxy working, but the problem is with https.
> >
> > Can you provide any pointers to doing this.
> >
> > I am using the following code for setting the proxy,
> >
> > HttpHost proxy = new HttpHost("localhost", 5555);
> >
> > httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY,
> proxy);
> >
> > Any help is greatly appreciated.
> >
> > Thanks,
> > Vicky
>
> I responded to your previous message but for some reason my response got
> lost in transit.
>
> First off, is there a reason why you are using such an outdated version
> of HttpClient? Even if for some inexplicable reasons you need full 4.0
> compatibility at the very least upgrade to 4.0.3. After that please run
> your code with wire / context logging on and post a log of the session
> to this list.
>
> http://hc.apache.org/httpcomponents-client-4.3.x/logging.html
>
> Oleg
>
>
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> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> For additional commands, e-mail: httpclient-users-help@hc.apache.org
>
>
Re: Queries around Http Client Proxy
Posted by Oleg Kalnichevski <ol...@apache.org>.
On Thu, 2014-03-13 at 21:07 +0530, Vicky wrote:
> Hi,
>
> I am using HttpClient 4.0.1. And trying to get proxy working with my SSL
> based http client. Unfortunately i haven't been successful so far.
>
> Could get a not secure http proxy working, but the problem is with https.
>
> Can you provide any pointers to doing this.
>
> I am using the following code for setting the proxy,
>
> HttpHost proxy = new HttpHost("localhost", 5555);
>
> httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
>
> Any help is greatly appreciated.
>
> Thanks,
> Vicky
I responded to your previous message but for some reason my response got
lost in transit.
First off, is there a reason why you are using such an outdated version
of HttpClient? Even if for some inexplicable reasons you need full 4.0
compatibility at the very least upgrade to 4.0.3. After that please run
your code with wire / context logging on and post a log of the session
to this list.
http://hc.apache.org/httpcomponents-client-4.3.x/logging.html
Oleg
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