Hi Richard,
We use an applet and SOAP, and have had some of the same problems. To fix
them, we created some new classes which replace the regular SOAP transport.
If you use the following code to set the transport, it will work.
AppletHTTPTransport connection = new AppletHTTPTransport();
_call.setSOAPTransport(connection);
One problem we are still having is with proxy servers that demand a
password. The problem is that the Java plugin (JRE 1.4.0) cannot even get
our jars. The documentation says it should ask for a password, but it seems
not to.
Mark.
At 05:41 PM 22/05/2002 +1000, you wrote:
>Karin,
>
>After further investigation, I'm afraid the situation is a good deal more
>complicated than that. In summary:
>
> This is a client-side problem: I have an applet trying to send SOAP
> messages
> I cannot know in advance what sort of environment the applet will find
> itself in
> Even if I _could_ read proxy information from the Java Plug-In (and that
> in itself seems difficult), I get security exceptions when trying to
> point Apache SOAP _at_ that proxy address (because it is not the address
> the applet was served from)
> I am not in a position to be able to modify security settings on client
> machines
>
>Of course, Java has proxy support built in, but it seems the problem stems
>from the fact that Apache use their own SOAPHTTPConnection instead of the
>JDK's URLConnection class. I am not sure why they do this, although
>apparently it allows better error handling for them, but it doesn't
>alleviate my security headaches.
>
>Anyway, this doesn't seem possible using Apache SOAP - I'm currently
>considering alternate implementations.
>
>Many thanks,
>
>Richard.
>
>
>
>
>
> Karin
> Stadler
> <karin.stadle To:
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]> cc:
>
> Subject: Re: SOAP blocked by
> a firewall?!
> 22/05/2002 Isn't that the whole POINT of
> SOAP?
> 05:16
> PM
>
>
>
>
>
>
>
>
>Hello Richard,
>
>it is a firewall problem! And you have to use the proxy to go through the
>firewall and not to "break throught the proxy".
>
>Now is the question if you have the http-request in the server-class or in
>the client-class: Because you have to input different code in (depends on
>server- or clientside) in the java-file. Look for them to:
>http://xml.apache.org/soap/faq/faq_chawke.html#Q2_30
>(But the example CATALINA_OPTS=..... , doesn't work for me, the other are
>going well in my case)
>
>Bye
>Karin
>
>--
>GMX - Die Kommunikationsplattform im Internet.
>http://www.gmx.net
package com.childersoft.entity;
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "SOAP" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2000, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.net.*;
import java.io.*;
import java.util.*;
import org.apache.soap.*;
import org.apache.soap.rpc.*;
import org.apache.soap.transport.*;
import org.apache.soap.util.mime.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.lang.reflect.*;
/**
* A bunch of utility stuff for doing HTTP things.
* <p>
* 2000/07/30 W. Cloetens added Multipart Mime support
*
* @author Sanjiva Weerawarana ([EMAIL PROTECTED])
* @author Matthew J. Duftler ([EMAIL PROTECTED])
* @author Wouter Cloetens ([EMAIL PROTECTED])
* @author Scott Nichol ([EMAIL PROTECTED])
*/
public class AppletHTTPUtils {
public static final int DEFAULT_OUTPUT_BUFFER_SIZE = 512;
/**
* POST something to the given URL. The headers are put in as
* HTTP headers, the content length is calculated and the content
* byte array is sent as the POST content.
*
* @param url the url to post to
* @param request the message
* @param timeout the amount of time, in ms, to block on reading data
* @param httpProxyHost the HTTP proxy host or null if no proxy
* @param httpProxyPort the HTTP proxy port, if the proxy host is not null
* @return the response message
*/
public static TransportMessage post(URL url, TransportMessage request,
int timeout,
String httpProxyHost, int httpProxyPort)
throws IllegalArgumentException, IOException, SOAPException {
return post(url,
request,
timeout,
httpProxyHost,
httpProxyPort,
DEFAULT_OUTPUT_BUFFER_SIZE);
}
/**
* POST something to the given URL. The headers are put in as
* HTTP headers, the content length is calculated and the content
* byte array is sent as the POST content.
*
* @param url the url to post to
* @param request the message
* @param timeout the amount of time, in ms, to block on reading data
* @param httpProxyHost the HTTP proxy host or null if no proxy
* @param httpProxyPort the HTTP proxy port, if the proxy host is not null
* @param outputBufferSize the size of the output buffer on the HTTP stream
* @return the response message
*/
public static TransportMessage post(URL url, TransportMessage request,
int timeout,
String httpProxyHost, int httpProxyPort,
int outputBufferSize)
throws IllegalArgumentException, IOException, SOAPException {
/* Open the connection */
OutputStream outStream = null;
InputStream inStream = null;
BufferedReader in = null;
HttpURLConnection conn=(HttpURLConnection)url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("SOAPAction","\"\"");
conn.setRequestProperty("Content-type","text/xml;charset=utf-8");
conn.setDoOutput(true);
conn.setDoInput(true);
outStream=conn.getOutputStream();
//Following code is if SOAP puts special headers in. If needed, use
setRequestProperty() to
//do it.
// for (Enumeration e = request.getHeaderNames(); e.hasMoreElements(); ) {
// Object key = e.nextElement();
// headerbuf.append(key).append(": ")
// .append(request.getHeader((String)key)).append("\r\n");
// }
// headerbuf.append("\r\n");
BufferedOutputStream bOutStream = new BufferedOutputStream(outStream,
outputBufferSize);
request.writeTo(bOutStream);
bOutStream.flush();
outStream.flush();
inStream=conn.getInputStream();
/* Remember that no header is returned. Therefore, no need to parse the header
out. If we want any elements of the header, we should get them directly. If we
don't
know all the headers, we can iterate through them. I don't think this is needed.
*/
BufferedInputStream bInStream = new BufferedInputStream(inStream);
/* Read the entire response (following the status line)
* into a byte array. */
ByteArrayDataSource ds = new ByteArrayDataSource(bInStream,
Constants.HEADERVAL_DEFAULT_CHARSET);
/* Extract the headers, content type and content length. */
byte[] bytes = ds.toByteArray();
Hashtable respHeaders = new Hashtable();
int respContentLength = -1;
String respContentType = null;
InputStream is = ds.getInputStream();
respContentLength=conn.getHeaderFieldInt("Content-length",0);
respContentType=conn.getHeaderField("Content-type");
/* Construct the response object. */
SOAPContext ctx;
TransportMessage response;
try {
// Create response SOAPContext.
ctx = new SOAPContext();
// Read content.
response = new TransportMessage(is, respContentLength,
respContentType, ctx, respHeaders);
// Extract envelope and SOAPContext
response.read();
} catch (MessagingException me) {
throw new IllegalArgumentException("Error parsing response: " + me);
}
/* All done here! */
bOutStream.close();
outStream.close();
bInStream.close();
inStream.close();
return response;
}
}
package com.childersoft.entity;
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "SOAP" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2000, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.io.*;
import java.net.*;
import java.util.*;
import org.w3c.dom.*;
import org.apache.soap.util.net.*;
import org.apache.soap.util.xml.*;
import org.apache.soap.util.mime.*;
import org.apache.soap.*;
import org.apache.soap.encoding.*;
import org.apache.soap.encoding.soapenc.Base64;
import org.apache.soap.transport.*;
import org.apache.soap.rpc.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
/**
* <code>SOAPHTTPConnection</code> is an implementation of the
* <code>SOAPTransport</code> interface for <em>HTTP</em>.
*
* @author Matthew J. Duftler ([EMAIL PROTECTED])
* @author Sanjiva Weerawarana ([EMAIL PROTECTED])
* @author Wouter Cloetens ([EMAIL PROTECTED])
* @author Scott Nichol ([EMAIL PROTECTED])
*/
public class AppletHTTPTransport implements SOAPTransport {
private BufferedReader responseReader;
private Hashtable responseHeaders;
private SOAPContext responseSOAPContext;
private String httpProxyHost;
private int httpProxyPort = 80;
private int timeout;
private String userName;
private String password;
private String proxyUserName;
private String proxyPassword;
private boolean maintainSession = true;
private String cookieHeader;
private String cookieHeader2;
private int outputBufferSize = AppletHTTPUtils.DEFAULT_OUTPUT_BUFFER_SIZE;
private static String encodeAuth(String userName, String password) {
return Base64.encode((userName + ":" + password).getBytes());
}
/**
* This method is used to request that an envelope be posted to the
* given URL. The response (if any) must be gotten by calling the
* receive() function.
*
* @param sendTo the URL to send the envelope to
* @param action the SOAPAction header field value
* @param headers any other header fields to go to as protocol headers
* @param env the envelope to send
* @param smr the XML<->Java type mapping registry (passed on)
* @param ctx the request SOAPContext
*
* @exception SOAPException with appropriate reason code if problem
*/
public void send (URL sendTo, String action, Hashtable headers,
Envelope env, SOAPMappingRegistry smr, SOAPContext ctx)
throws SOAPException {
try {
String payload = null;
if (env != null) {
StringWriter payloadSW = new StringWriter ();
env.marshall (payloadSW, smr, ctx);
payload = payloadSW.toString ();
}
if (headers == null) {
headers = new Hashtable ();
}
if (maintainSession) {
// if there is saved cookie headers, put them in to the request
if (cookieHeader2 != null) { // RFC 2965 header
headers.put ("Cookie2", cookieHeader2);
}
if (cookieHeader != null) { // RFC 2109 header
headers.put ("Cookie", cookieHeader);
}
}
headers.put (Constants.HEADER_SOAP_ACTION,
(action != null) ? ('\"' + action + '\"') : "");
if (userName != null) {
// add the Authorization header for Basic authentication
headers.put (Constants.HEADER_AUTHORIZATION,
"Basic " + encodeAuth(userName, password));
}
if (proxyUserName != null) {
// add the Proxy-Authorization header for proxy authentication
headers.put (Constants.HEADER_PROXY_AUTHORIZATION,
"Basic " + encodeAuth(proxyUserName, proxyPassword));
}
TransportMessage response;
try
{
TransportMessage msg = new TransportMessage(payload, ctx, headers);
msg.save();
response = AppletHTTPUtils.post (sendTo, msg,
timeout, httpProxyHost, httpProxyPort,
outputBufferSize);
} catch (MessagingException me) {
throw new IOException ("Failed to encode mime multipart: " + me);
} catch (UnsupportedEncodingException uee) {
throw new IOException ("Failed to encode mime multipart: " + uee);
}
Reader envReader = response.getEnvelopeReader();
if (envReader != null)
responseReader = new BufferedReader(envReader);
else
responseReader = null;
responseSOAPContext = response.getSOAPContext();
responseHeaders = response.getHeaders();
if (maintainSession) {
// look for Set-Cookie2 and Set-Cookie headers and save them after
// stripping everything after the ';' (i.e., ignore all cookie attrs).
// Only update my state iff the header is there .. otherwise
// leave the current
String hdr;
hdr = (String) responseHeaders.get ("Set-Cookie2");
if (hdr != null) {
cookieHeader2 = hdr;
int index = cookieHeader2.indexOf (';');
if (index != -1) {
cookieHeader2 = cookieHeader2.substring (0, index);
}
}
hdr = (String) responseHeaders.get ("Set-Cookie");
if (hdr != null) {
cookieHeader = hdr;
int index = cookieHeader.indexOf (';');
if (index != -1) {
cookieHeader = cookieHeader.substring (0, index);
}
}
}
} catch (IllegalArgumentException e) {
throw new SOAPException (Constants.FAULT_CODE_CLIENT, e.getMessage(), e);
} catch (MessagingException e) {
throw new SOAPException (Constants.FAULT_CODE_CLIENT, e.getMessage(), e);
} catch (IOException e) {
throw new SOAPException (Constants.FAULT_CODE_CLIENT, e.getMessage(), e);
}
}
/**
* Return a buffered reader to receive back the response to whatever
* was sent to whatever.
*
* @return a reader to read the results from or null if that's not
* possible.
*/
public BufferedReader receive () {
return responseReader;
}
/**
* Return access to headers generated by the protocol.
*
* @return a hashtable containing all the headers
*/
public Hashtable getHeaders () {
return responseHeaders;
}
/**
* Return the SOAPContext associated with the response.
*
* @return response SOAPContext
*/
public SOAPContext getResponseSOAPContext () {
return responseSOAPContext;
}
}
