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https://issues.apache.org/jira/browse/HTTPCLIENT-2199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17481124#comment-17481124
]
can commented on HTTPCLIENT-2199:
---------------------------------
For this ntlm issue, there is no exception but I can share log files.
Inside "NoRequestAfter2ndResponse.txt", there is an outgoing GET request and
then a response with header => Www-Authenticate: NTLM
Then 2nd GET request is executed with Authorization header and then a new
challenge is received with header => Www-Authenticate: NTLM
TlRMTVNTUAACAAAAAAAAACgAAAABAAAAAAAAAAAAAAA=
And then, in the end of the logs, we see message "Authentication failed"
There should be one more HTTP GET request to complete authentication.
[^NoRequestAfter2ndResponse.txt]
Here is another log with an external Authenticator (which process NTLM
challenge properly)
[^RequestAfter2ndResponse.txt]
Kotlin sample code to reproduce issue (only 2 GET requests executed) on Android
{noformat}
val credentialStore: CredentialsStore = BasicCredentialsProvider()
credentialStore.setCredentials(
AuthScope(null, null, -1, null, "NTLM"),
NTCredentials("test", "test".toCharArray(), null, null))
val httpClient = HttpClients.custom()
.setDefaultCredentialsProvider(credentialStore)
.build()
val request = HttpGet("http://ntlm.herokuapp.com/";)
request.config = RequestConfig.custom()
.setTargetPreferredAuthSchemes(listOf("NTLM"))
.setAuthenticationEnabled(true).build()
var response: CloseableHttpResponse? = null
try {
response = httpClient.execute(request)
} catch (e: Exception) {
e.printStackTrace()
}
response?.close()
httpClient.close()
{noformat}
> NTLM authentication not working
> -------------------------------
>
> Key: HTTPCLIENT-2199
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2199
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 5.1.2
> Reporter: can
> Priority: Major
> Attachments: 150694519-4216bb91-ad43-40d1-ba8e-1818af685560.png
>
>
> In NTLMScheme class (NTLMScheme.java), processChallenge function is trying to
> read challenge using getValue() function.
> But it is always returning null.
> Challenge is actually stored inside params and can be accessed by getParams()
> function.
> see https://github.com/ok2c/httpclient-android-ext/issues/3
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