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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1748) When run in java applet, SystemDefaultCredentialsProvider fails to get authentication from Authenticator
Date Tue, 28 Jun 2016 19:30:57 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353588#comment-15353588
] 

ASF GitHub Bot commented on HTTPCLIENT-1748:
--------------------------------------------

Github user ok2c commented on the issue:

    https://github.com/apache/httpclient/pull/52
  
    I have no problem of what so ever with changing CredentialsProvider in 5.0 if it is justified.


> When run in java applet, SystemDefaultCredentialsProvider fails to get authentication
from Authenticator
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1748
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1748
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.5
>         Environment: Windows, application running in a java applet started by firefox,
connection to a remote server via a squid proxy with basic authentication
>            Reporter: S├ębastien Caille
>            Priority: Trivial
>
> Hello,
> The java applets are deprecated, but the issue may impact other use cases.
> During a POST call made from a java applet via a proxy server with basic authentication,
SystemDefaultCredentialsProvider.getSystemCreds(...) calls Authenticator.requestPasswordAuthentication,
which wrongly returns "null" authentication.
> The java applet console shows that a NullPointerException was ignored.
> I managed to fix the issue by providing the following values to Authenticator.requestPasswordAuthentication
(getSystemCreds is currently providing null for those ones ):
>   prompt = authscope.getRealm()
>   url = context.getAttribute(HttpClientContext.HTTP_TARGET_HOST)
> Both values are needed ( prompt == null && url != null -> dialog box asking
for credentials, prompt != null && url == null -> crashes firefox)
> Note that when downloading the applet jar files, the java is providing values for all
the parameters of Authenticator.requestPasswordAuthentication (according to a breakpoint in
requestPasswordAuthentication).
> Thanks



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