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https://issues.apache.org/jira/browse/HTTPCLIENT-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677268#action_12677268
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Ralf Hauser commented on HTTPCLIENT-524:
----------------------------------------
the sample is now in
http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/examples/org/apache/http/examples/client/ClientInteractiveAuthentication.java
see also http://issues.apache.org/jira/browse/HTTPCLIENT-831
> Provide feedback mechanism to CredentialsProvider
> -------------------------------------------------
>
> Key: HTTPCLIENT-524
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-524
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpAuth
> Affects Versions: 3.0 RC4
> Environment: Operating System: Windows XP
> Platform: Other
> Reporter: David Martineau
> Fix For: 4.0 Alpha 2
>
>
> If the remote server is using BASIC or NT authentication and you pass in
> invalid credentials you get stuck in an infinite for loop, repeatedly sending
> the same authentication request again and again to the server. The for loop
> is
> in the executeMethod method of the HttpMethodDirector class.
> Sample code:
> =================================================================
> import org.apache.commons.httpclient.Credentials;
> import org.apache.commons.httpclient.NTCredentials;
> import org.apache.commons.httpclient.UsernamePasswordCredentials;
> import org.apache.commons.httpclient.HttpClient;
> import org.apache.commons.httpclient.methods.GetMethod;
> import org.apache.commons.httpclient.auth.*;
> import java.io.IOException;
> import java.io.BufferedInputStream;
> import java.io.ByteArrayOutputStream;
> /**
> * Created by IntelliJ IDEA.
> * User: dmartineau
> * Date: Nov 8, 2005
> * Time: 1:43:21 PM
> */
> public class ShowProblem
> {
> private String location;
> private String user;
> private String pass;
> private String domain;
> public ShowProblem(String location, String user, String pass, String
> domain)
> {
> this.location = location;
> this.user=user;
> this.pass=pass;
> this.domain=domain;
> }
> public int getFile()
> {
> int status = 500;
> HttpClient client = new HttpClient();
> client.getParams().setParameter(
> CredentialsProvider.PROVIDER, new CProvider(user,pass,domain));
> GetMethod httpget = new GetMethod(location);
> httpget.setDoAuthentication(true);
> try
> {
> // execute the GET
> status = client.executeMethod(httpget);
> if (status==200)
> {
> BufferedInputStream bin = new BufferedInputStream
> (httpget.getResponseBodyAsStream());
> ByteArrayOutputStream bos = new ByteArrayOutputStream();
> int bytesRead = 0;
> byte[] buff = new byte[16384];
> while ( (bytesRead = bin.read(buff)) != -1) {
> bos.write(buff, 0, bytesRead);
> }
> // display the results.
> System.out.println(new String(bos.toByteArray()));
> }
> }
> catch (Throwable t)
> {
> t.printStackTrace();
> }
> finally
> {
> // release any connection resources used by the method
> httpget.releaseConnection();
> }
> return status;
> }
> public static void main(String[] args)
> {
> ShowProblem showProblem = new ShowProblem(args[0],args[1],args[2],args
> [3]);
> int response = showProblem.getFile();
>
> }
> class CProvider implements CredentialsProvider
> {
> private String user;
> private String password;
> private String domain;
> public CProvider(String user, String password, String domain)
> {
> super();
> this.user = user;
> this.password = password;
> this.domain = domain;
> }
> public Credentials getCredentials(final AuthScheme authscheme,final
> String host,int port,boolean proxy)
> throws CredentialsNotAvailableException
> {
> if (authscheme == null)
> {
> return null;
> }
> try
> {
> if (authscheme instanceof NTLMScheme)
> {
> return new NTCredentials(user, password, host, domain);
> }
> else if (authscheme instanceof RFC2617Scheme)
> {
> return new UsernamePasswordCredentials(user, password);
> }
> else
> {
> throw new CredentialsNotAvailableException("Unsupported
> authentication scheme: " +
> authscheme.getSchemeName());
> }
> }
> catch (IOException e)
> {
> throw new CredentialsNotAvailableException(e.getMessage(), e);
> }
> }
> }
> }
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