DDevelopment & Design

Windows 7 – problem with login to your web application

Have you ever experienced problem with login to your web application that uses JCIFS NtlmHttpFilter ? Does the problem occurs on new Windows platforms (Windows 7 or Vista) and all is fine on Windows Xp ? Finally, why some user with theoretically same system have this problem while other do not report any difficulties ? Technically the answer to your problem is

here. But does it practically means that you will have to rebuild whole authentication process and start using NTLMv2 ? The answer is: it would be a good thing to do ! But if your application is pretty old, problem is selective and only handful of users report authentication problem and finally there is no time and money on the horizon… well I suppose we can think of small workaround. First solution is pure client side workaround. Force client Windows to use old NTLMv1 with below registry change: HKLM\SYSTEM\CurrentControlSet\Control\Lsa Set LmCompatibilityLevel (DWORD) to “1” Second solution. Small application change. Modify your NtlmHttpFilter config (web.xml):

jcifs.smb.lmCompatibility
    1

Although first solution is bullet proof and 100% working it is not very convenient client OS modification. Use it only if second solution fails.

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DDevelopment & Design

New HTTP Logger Grails plugin

I've wrote a new Grails plugin - httplogger. It logs:

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Here is some simple output just to give you a taste of it.

17:16:00,331 INFO  filters.LogRawRequestInfoFilter  - 17:16:00,340 INFO  filters.LogRawRequestInfoFilter  - 17:16:00,342 INFO  filters.LogGrailsUrlsInfoFilter  - 17:16:00,731 INFO  filters.LogOutputResponseFilter  - >> #1 returned 200, took 405 ms.
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17:18:55,799 INFO  filters.LogRawRequestInfoFilter  - 17:18:55,799 INFO  filters.LogRawRequestInfoFilter  - 17:18:55,800 INFO  filters.LogRawRequestInfoFilter  - 17:18:55,801 INFO  filters.LogOutputResponseFilter  - >> #2 returned 404, took 3 ms.
17:18:55,802 INFO  filters.LogOutputResponseFilter  - >> #2 responded with ''

Official plugin information can be found on Grails plugins website here: http://grails.org/plugins/httplogger or you can browse code on github: TouK/grails-httplogger.

DDevelopment & Design

Hibernate hbm2ddl won’t create schema before creating tables

Situation I have a local H2 in memory database for integration tests and an Oracle db for production. I do not control the Oracle DB model. The in memory H2 database is created automatically by adding <prop key="hibernate.hbm2ddl.auto">update&l...Situation I have a local H2 in memory database for integration tests and an Oracle db for production. I do not control the Oracle DB model. The in memory H2 database is created automatically by adding <prop key="hibernate.hbm2ddl.auto">update&l...