I'm still having issues getting my wsdl from Exchange. The exchange server was
recently reconfigured to ntlmv2. I hope someone can help me. What I'm using the
new HttpResponseInterceptor for, that I found on this forum 6/6, is to output
the response headers. Below the code find that output, if of help.
Here is the code below:
private void sampleCode1() {
//
http://mail-archives.apache.org/mod_mbox/hc-httpclient-users/201206.mbox/%[email protected]%3E
try {
HttpHost httpHost = new HttpHost(_host, 443, "https");
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.addResponseInterceptor(new HttpResponseInterceptor() {
public void process(HttpResponse response, HttpContext context)
throws HttpException, IOException {
for (Header h:response.getAllHeaders()) {
System.out.println(h.getName() + "=" + h.getValue());
}
if (response.getStatusLine().getStatusCode() == 401) {
Header ua = response.getFirstHeader("X-Powered-By");
if (ua != null && ua.getValue().equalsIgnoreCase("ASP.NET")) {
Header challenge = response.getFirstHeader(AUTH.WWW_AUTH);
if (challenge != null &&
challenge.getValue().equalsIgnoreCase("Negotiate")) {
response.setHeader(AUTH.WWW_AUTH, "Negotiate");
response.addHeader(AUTH.WWW_AUTH, "NTLM");
}
}
} else if (response.getStatusLine().getStatusCode() == 302) {
InputStream in = response.getEntity().getContent();
int i = in.available();
byte[] buf = new byte[i];
in.read(buf);
System.out.println(new String(buf));
}
}
});
httpclient.getCredentialsProvider().setCredentials(new
AuthScope(httpHost), new NTCredentials(_user, _password, _localIp, _domain));
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local
// auth cache
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, "UTF-8");
HttpProtocolParams.setUseExpectContinue(params, true);
NTLMSchemeFactory nsf = new NTLMSchemeFactory();
AuthScheme authScheme = nsf.newInstance(params);
authCache.put(httpHost, authScheme);
// Add AuthCache to the execution context
BasicHttpContext localcontext = new BasicHttpContext();
localcontext.setAttribute(ClientContext.AUTH_CACHE, authCache);
HttpGet httpget = new HttpGet(_urlFrag);
System.out.println("executing request: " + httpget.getRequestLine());
System.out.println("to target: " + httpHost);
HttpResponse response = httpclient.execute(httpHost, httpget,
localcontext); //, localcontext);
// HttpResponse response = httpclient.execute(httpHost, httpget); //,
localcontext);
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (entity != null) {
System.out.println("Response content length: " +
entity.getContentLength());
}
EntityUtils.consume(entity);
} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
Below is the output set of headers. Running this app, the interceptor is run
four times. See the header output below.
1st iteration
HTTP/1.1 401 Unauthorized
Content-Length=1656
Content-Type=text/html
Server=Microsoft-IIS/6.0
WWW-Authenticate=Negotiate
WWW-Authenticate=NTLM
X-Powered-By=ASP.NET
Date=Tue, 21 Aug 2012 15:02:19 GMT
2nd iteration
HTTP/1.1 401 Unauthorized
Content-Length=1539
Content-Type=text/html
Server=Microsoft-IIS/6.0
WWW-Authenticate=NTLM
TlRMTVNTUAACAAAABgAGADgAAAA1AokiwCUuuCyjaBUAAAAAAAAAAIwAjAA+AAAABQLODgAAAA9OAEQAQwACAAYATgBEAEMAAQASAE4ARABNAFMAQwBBAFMAMQAzAAQAGABuAGQAYwAuAG4AYQBzAGEALgBnAG8AdgADACwAbgBkAG0AcwBjAGEAcwAxADMALgBuAGQAYwAuAG4AYQBzAGEALgBnAG8AdgAFABgAbgBkAGMALgBuAGEAcwBhAC4AZwBvAHYAAAAAAA==
X-Powered-By=ASP.NET
Date=Tue, 21 Aug 2012 15:03:41 GMT
3rd iteration
HTTP/1.1 302 Found
Connection=close
Date=Tue, 21 Aug 2012 15:04:28 GMT
Server=Microsoft-IIS/6.0
X-Powered-By=ASP.NET
X-AspNet-Version=2.0.50727
Location=/ews/Services.wsdl
Cache-Control=private
Content-Type=text/html
Got following debug output after this iteration.
Aug 21, 2012 10:05:09 AM
org.apache.http.client.protocol.RequestAuthenticationBase process
SEVERE: NTLM authentication error: Unexpected state: MSG_TYPE3_GENERATED
4th iteration
HTTP/1.1 401 Unauthorized
Content-Length=1656
Content-Type=text/html
Server=Microsoft-IIS/6.0
WWW-Authenticate=Negotiate
WWW-Authenticate=NTLM
X-Powered-By=ASP.NET
Date=Tue, 21 Aug 2012 15:05:09 GMT
I'm not getting my page, although iteration 3 suggests that I'm almost home.
Anyone have a clue what I might try next?
Thanks,
Dave
-----Original Message-----
From: Godbey, David J. (HQ-LM020)[INDYNE INC] [mailto:[email protected]]
Sent: Monday, August 20, 2012 3:59 PM
To: [email protected]
Subject: Can't communicate to Exchange server since authentication upgraded to
ntlmv2
I'm a java developer who has built a couple of J2EE components around an
Exchange server using EWS (JAX-WS). Everything was working swimmingly until
last week when the Exchange server was upgraded. At that point, my EWS services
went down. I'm still trying to figure out what happened, but my biggest clue is
that they upgraded the authentication scheme to NTLMv2. With that knowledge, I
installed version 4.2 of the client, and I'm just trying to download the wsdl
file:
https://myMailServer/ews/Exchange.asmx<https://mailServer/ews/Exchange.asmx>.
The errors I got looked a lot like what Pedro Saraiva reported on June 5,
http://mail-archives.apache.org/mod_mbox/hc-httpclient-users/201206.mbox/%3C4FCDE4E1.70701%40maisis.pt%3E
What is the proper way to add HttpResponseInterceptor interceptors? Which one
should work with an NTLMv2 SSL Exchange server? I noticed that the only one my
code is calling is the ResponseProcessCookies.
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