PH09519: Allow MVSDS to only use the last qualifier of a dataset name for mime extension checking

9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3

APAR status

• Closed as program error.

Error description

• With APACHE, a file can have more than one extension and the
  order of the extensions is normally irrelevant. So IBM HTTP
  Server will check any qualifier in the dataset for a mime
  extension.  This does not always produce the required content
  type for the dataset using MVSDS ,if an mime extension is
  found in a middle qualifier, like PDB.  This can cause the
  request to be displayed as garbage or cause the browser to
  attempt to download the dataset.
  
  This APAR will allow MVSDS to only check the last qualifier of
  a dataset name for mime extension (ie, datasets that end in
  .zip, .pdf, .txt. .xml).
  

Local fix

• Use RemoveType in the MVSDS directive for the mime type that is
  matching the dataset qualifiers that is not wanted
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM HTTP Server 9.0 with the       *
  *                  MVSDS module on z/OS.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: A file with multiple extensions can     *
  *                      end up with the wrong content type      *
  *                      for the dataset using MVSDS.            *
  ****************************************************************
  * RECOMMENDATION:  Apply this fix if using IBM HTTP Server     *
  *                  9.0 with the MVSDS module on z/OS.          *
  ****************************************************************
  A new 'MimeOptions' directive configures certain behaviors of
  the 'mod_mime' module.
  Options can be one of: TypesLastExtension,
  NoTypesLastExtension, AllLastExtension, NoAllLastExtension,
  Disable, Enable.
  

Problem conclusion

• A 'MimeOptions' directive was added to allow Content-Type or
  all metadata detection to use only the last (right-most) file
  extension.
  
  This fix is targeted for IBM HTTP Server fix packs:
  - 9.0.5.0
  

Temporary fix

• Use RemoveType in the MVSDS directive for the mime type that
  is matching the dataset qualifiers that is not wanted.
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WAS IHS ZOS

• Fixed component ID

  5655I3510

Applicable component levels

• R90P PSY

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