[HTTPCLIENT-1962] WindowsNegotiateScheme incorrectly requires challenge in initial response

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 5.0 Beta3
• Fix Version/s: Stuck
• Component/s: HttpClient (Windows)
• Labels: stuck volunteers-wanted
• Assignee: Unassigned
• Reporter: Volker Jung
• Created: 16/Jan/19 13:29
• Updated: 17/Jan/19 10:15

Description

'WindowsNegotiateScheme.processChallenge' requires the value of an AuthChallenge to be present on any invocation, as it requires the GSSAPI-Data to perform the authentication process.

But the "WWW-Authenticate"-header of the initial "401 Unauthorized" response does not contain any GSSAPI-Data (see RFC4559, Section 4.1, first paragraph).

'WindowsNegotiateScheme.generateAuthResponse' correctly handles the initial case, as it does not require any challenge to be present.