Name: krC82822 Date: 02/07/2001


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

The problem happens when using HTTPS with proxy server. JSSE always returns the
error

   "java.io.IOException: Unable to tunnel through 192.168.1.250:8080. Proxy
returns "HTTP/1.1 200 Connection established"

even thought the connection was established successfully with the proxy server.

I found that the com.sun.net.ssl.internal.www.protocol.https.HttpsClient class
has the following checking in it's "a" method which may be the cause of the
problem:

    private void a(Socket Socket1, String String2, int int3)
        throws IOException
    {
         .......

         if( !( String14.startsWith( "HTTP/1.0 200" ) ) )
            throw new IOException( "Unable to tunnel through " + h + ":" + i
+ ". Proxy returns \"" + String14 + "\"" );
        else
            return;
    }

The above method hardcoded the "HTTP/1.0 200" for checking of successful
connection. For instance, some proxy servers may return something
like "HTTP/1.1 200" (two spaces in the middle) but not exactly "HTTP/1.0 200".
However, the JSSE logic will throw an exception.
(Review ID: 114265)
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