Review Request 126990: Try NTLMv2 authentication if the server denies NTLMv1

[Krzysztof Nowicki]

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https://git.reviewboard.kde.org/r/126990/
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Review request for KDE Frameworks and Dawit Alemayehu.


Repository: kio


Description
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Some IIS servers seem to be configured to reject NTLMv1 authentication by refusing to reply to a NTLM stage 1 if the NTLMv2 flag is not set. If such a thing happens try to send another stage 1 message with the NTLMv2 flag set and if the server accepts this continue with NTLMv2.

This also fixes invese logic when determining if the authentication needs a password (it needs it during stage 3 response and not stage 1).
    
As a bonus this includes a test case for verifying NTLMv2 authentication and a fix for one of the existing test cases which contained wrong expected data (the expected response was generated without use of username and password due to the inverse logic bug above).


Diffs
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  autotests/http/httpauthenticationtest.h 35b822a 
  autotests/http/httpauthenticationtest.cpp 719f7a9 
  src/ioslaves/http/httpauthentication.h a74565e 
  src/ioslaves/http/httpauthentication.cpp dcc86c2 

Diff: https://git.reviewboard.kde.org/r/126990/diff/


Testing
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Tested on an IIS 7.5 server with NTLMv1 blacklisted. Additionally executed automatic tests without regressions.


Thanks,

Krzysztof Nowicki

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