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From: Bruce McHaffie <bruce.mchaffie@entrust.com>
To: "'Commons HttpClient Project'"
	 <commons-httpclient-dev@jakarta.apache.org>
Subject: RE: Auto-detecting proxy settings in a standalone Java app
Date: Fri, 22 Oct 2004 11:47:50 -0400
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Hi Chris, I just meant decompile the plugin.jar code and take a look at what
Sun does for getting proxy settings. I've never tried loading plugin.jar
outside a browser. That's an interesting idea though.

Bruce. 


-----Original Message-----
From: Chris Brown [mailto:chris92250@hotmail.com] 
Sent: October 22, 2004 10:35 AM
To: commons-httpclient-dev@jakarta.apache.org
Subject: RE: Auto-detecting proxy settings in a standalone Java app


Hi,

I can get this to work within an applet, but not standalone.  When running 
standalone, I have the "plugin.jar" file in the classpath (it was also 
obviously in the classpath at compile time)...  However, when standalone, it

fails to load a dependent DLL..

Here's the code:

package sandbox;
import sun.plugin.net.proxy.*;
public class Test
{
public static void main(String[] args)
{
  WIExplorerProxyConfig wiExplorerProxyConfig = new WIExplorerProxyConfig();
  BrowserProxyInfo browserProxyInfo = 
wiExplorerProxyConfig.getBrowserProxyInfo();
  System.out.println(browserProxyInfo.getHttpHost());
}
}

And here's the stack trace:

java.lang.UnsatisfiedLinkError: initIDs
at sun.plugin.services.WinRegistry.initIDs(Native Method)
at sun.plugin.services.WinRegistry.init(WinRegistry.java:113)
at 
sun.plugin.net.proxy.WIExplorerProxyConfig.getBrowserProxyInfo(WIExplorerPro
xyConfig.java:45)
at sandbox.Test.main(Test.java:18)

And (going over the top), here's the launch command:
C:\java\jdk1.4.2\bin\java -Didea.launcher.port=7533 
-Didea.launcher.library=C:\java\idea\bin\breakgen.dll 
-Dfile.encoding=windows-1252 -classpath 
"C:\java\jdk1.4.2\jre\lib\charsets.jar;C:\java\jdk1.4.2\jre\lib\jce.jar;C:\j
ava\jdk1.4.2\jre\lib\jsse.jar;C:\java\jdk1.4.2\jre\lib\plugin.jar;C:\java\jd
k1.4.2\jre\lib\rt.jar;C:\java\jdk1.4.2\jre\lib\sunrsasign.jar;C:\java\jdk1.4
.2\jre\lib\ext\dnsns.jar;C:\java\jdk1.4.2\jre\lib\ext\ldapsec.jar;C:\java\jd
k1.4.2\jre\lib\ext\localedata.jar;C:\java\jdk1.4.2\jre\lib\ext\sunjce_provid
er.jar;C:\Documents 
and 
Settings\christopher.brown\IdeaProjects\SIS-Demat-Applets\classes;C:\java\pr
ojects\demat-applet\java\lib\assembla_msks_jce.jar;C:\java\projects\demat-ap
plet\java\lib\commons-codec-1.3.jar;C:\java\projects\demat-applet\java\lib\c
ommons-httpclient-3.0-alpha2.jar;C:\java\projects\demat-applet\java\lib\comm
ons-logging.jar;C:\java\idea\lib\idea_rt.jar" 
com.intellij.rt.execution.application.AppMain sandbox.Test

Any thoughts?

Thanks,
Chris

I obviously need some other file in the path, but I don't know which...

>From: Bruce McHaffie <bruce.mchaffie@entrust.com>
>Reply-To: "Commons HttpClient Project"
><commons-httpclient-dev@jakarta.apache.org>
>To: "'Commons HttpClient Project'" 
><commons-httpclient-dev@jakarta.apache.org>
>Subject: RE: Auto-detecting proxy settings in a standalone Java app
>Date: Fri, 22 Oct 2004 09:41:57 -0400
>
>Hi Chris,
>
>You may also want to take a look at the plugin.jar that ships with the 
>JRE. You'll find some good stuff in 
>sun.plugin.net.proxy.WIExplorerProxyConfig.
>Here are the registry entries that Sun looks for in that class.
>
>     private static final String REGSTR_PATH_INTERNET_SETTINGS = 
>"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings";
>     private static final String REGSTR_VAL_PROXYENABLE = "ProxyEnable";
>     private static final String REGSTR_VAL_PROXYSERVER = "ProxyServer";
>     private static final String REGSTR_VAL_PROXYOVERRIDE =
>"ProxyOverride";
>     private static final String REGSTR_VAL_AUTOCONFIGURL = 
>"AutoConfigURL";
>
>
>There are also proxy detection classes for other browsers in the same 
>package.
>
>Bruce.
>
>
>
>-----Original Message-----
>From: Roland Weber [mailto:ROLWEBER@de.ibm.com]
>Sent: October 22, 2004 7:16 AM
>To: Commons HttpClient Project
>Subject: Re: Auto-detecting proxy settings in a standalone Java app
>
>
>Hello Chris,
>
>setting a fantasy proxy server in IE and searching for it in the 
>registry
>yields:
>
>HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet
>Settings
>-> ProxyServer
>-> ProxyEnable
>
>
>a quick search on Google for "Java Windows Registry" yields:
>
>http://www.trustice.com/java/jnireg/
>A public domain solution to access the Windows registry.
>
>http://sourceforge.net/projects/jregistrykey/
>An LGPL-licensed solution to access the Windows registry.
>
>
>hope that helps,
>   Roland
>
>
>
>
>
>"Chris Brown" <chris92250@hotmail.com>
>22.10.2004 12:45
>Please respond to
>"Commons HttpClient Project"
>
>
>To
>commons-httpclient-dev@jakarta.apache.org
>cc
>
>Subject
>Re: Auto-detecting proxy settings in a standalone Java app
>
>
>
>
>
>
>Hi,
>
>Thanks for all the rapid feedback so far.
>
>I don't have VB or the VB runtime, although perhaps I could use the 
>JNIWrapper software to access this information (if I knew where it 
>was...!).
>   Pity the Webstart proxy detection stuff isn't available for all to 
>see, as it returns (I think) appropriate params, whether you use IE or 
>Mozilla or whatever.
>
>On the other hand, given that JNIWrapper is commercial software, 
>perhaps someone would know how to write a simple C program with "mingw" 
>or whatever (easy to compile).  It could detect params and return them 
>on STDOUT, to be
>picked up either by a startup.bat or even through Runtime.exec() (solving
>the "restart the JVM" problem discussed earlier in this thread).
>
>First thing's first though... does anyone know where this information 
>is stored in Windows ?  IE and Mozilla/Firefox seem good targets for 
>starters.
>
>Hey, why not even a little optional subproject for HTTPClient 
>(requiring JNI and a compiler, preferably not *requiring* the MS tool 
>chain), with a simple
>ProxyDetector interface, and a series of platform-specific implementations
>
>(to go further than my current Windows-only need) ?
>
>Any thoughts on these big ideas, or at least as far as solving the 
>immediate problem (where are these settings stored and how can I get at 
>them?)
>
>Thanks to all,
>Chris
>
>
>
>
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