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Posted to httpclient-users@hc.apache.org by Kamil Páral <ri...@gmail.com> on 2008/04/09 11:06:51 UTC
HTTP packets instead of TCP packets
Hello,
I'm developing a small application for getting webpages over GET and
posting filled-in web forms over POST requests. Initially I have used
standard Java 6 API, but it was problematic and buggy, so I have
switched to Commons HttpClient 3.1, which works perfect. I have one
problem though.
With standard Java 6 API my users were able to define HTTP proxy (via
system properties) and everything worked. With Commons HttpClient it
does not. I have observed the network traffic with Wireshark and found
that standard Java 6 API sends HTTP packets only, but Commons HttpClient
uses pure TCP packets very often (as a request to server and as a
response from the server). Therefore with your library, the HTTP proxy
simply does not apply. But a lot of users don't have possibility to use
SOCKS proxy (for general TCP), just HTTP. For these users my program now
does not work.
I would like to ask if there is some option to convince the Commons
HttpClient to use real HTTP packets and not just TCP ones. This would
enable many of my users to use HTTP proxy again.
Thank you for any help.
Kamil Páral
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Re: HTTP packets instead of TCP packets
Posted by Biju P <bi...@tcs.com>.
Hi Kamil,
You may try the below code. It detects the proxy settings from System
Properties and if it is "manual", it extracts the proxy list and configure
accordingly. It works fine with IE, but no idea about other browsers.
HttpClient client = new HttpClient();
if(System.getProperty("javaplugin.proxy.config.type").trim()=="manual")
{
String
strProxyList=System.getProperty("javaplugin.proxy.config.list");
if(strProxyList!=null && strProxyList.trim()!="")
{
String
strHttpProxy=strProxyList.substring(strProxyList.indexOf("http=")+5,
strProxyList.indexOf(',',strProxyList.indexOf("http=")+5)).trim();
client.getHostConfiguration().setProxy(strHttpProxy.substring(0,strHttpProxy.indexOf(':')),
Integer.parseInt(strHttpProxy.substring(strHttpProxy.indexOf(':')+1)));
client.getState().setProxyCredentials("",
strHttpProxy.substring(0,strHttpProxy.indexOf(':')), new
UsernamePasswordCredentials("myusername", "mypassword"));
}
}
Regards,
Biju P M
Mailto: biju.p@tcs.com
Kamil Páral <ri...@gmail.com>
04/16/2008 03:55 PM
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Re: HTTP packets instead of TCP packets
Kamil Páral wrote:
> Noone really knows, how to have HTTP proxy working with Commons
> HttpClient 3.1?
>
If somebody got any idea, please CC me also to my email, I'm
unsubscribing from the list. Thanks.
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Re: HTTP packets instead of TCP packets
Posted by Kamil Páral <ri...@gmail.com>.
Kamil Páral wrote:
> Noone really knows, how to have HTTP proxy working with Commons
> HttpClient 3.1?
>
If somebody got any idea, please CC me also to my email, I'm
unsubscribing from the list. Thanks.
---------------------------------------------------------------------
To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
For additional commands, e-mail: httpclient-users-help@hc.apache.org
Re: HTTP packets instead of TCP packets
Posted by Kamil Páral <ri...@gmail.com>.
Kamil Páral wrote:
> Hello,
> I'm developing a small application for getting webpages over GET and
> posting filled-in web forms over POST requests. Initially I have used
> standard Java 6 API, but it was problematic and buggy, so I have
> switched to Commons HttpClient 3.1, which works perfect. I have one
> problem though.
>
> With standard Java 6 API my users were able to define HTTP proxy (via
> system properties) and everything worked. With Commons HttpClient it
> does not. I have observed the network traffic with Wireshark and found
> that standard Java 6 API sends HTTP packets only, but Commons
> HttpClient uses pure TCP packets very often (as a request to server
> and as a response from the server). Therefore with your library, the
> HTTP proxy simply does not apply. But a lot of users don't have
> possibility to use SOCKS proxy (for general TCP), just HTTP. For these
> users my program now does not work.
>
> I would like to ask if there is some option to convince the Commons
> HttpClient to use real HTTP packets and not just TCP ones. This would
> enable many of my users to use HTTP proxy again.
>
> Thank you for any help.
> Kamil Páral
Noone really knows, how to have HTTP proxy working with Commons
HttpClient 3.1?
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