PK95274: ATOM FEED WITH A KEY CONTAINING A SPACE GIVES MISLEADING ERROR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In a KSDS file is read via an atom feed and a key is supplied
  which contains a trailing space, the Web 2.0 code is failing to
  unescape the space so the file READ incorrectly fails and
  results in a response of http 400 Invalid request.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: A KSDS VSAM file is being accessed as   *
  *                      a CICS Atom feed, and one or more of    *
  *                      the file's keys contains a space        *
  *                      character. CICS gives an HTTP 400       *
  *                      response, and the feed data is not      *
  *                      returned.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When CICS is constructing URIs to be contained in the href
  attributes within atom:link elements in the feed, it uses the
  KSDS file key value as a "selector" to qualify the URI.
  If the selector contains spaces, these are not correctly
  escaped to percent-encoded values when contructing the
  link URI. Therefore, when the URI is being converted to XML
  prior to insertion in the feed response document, it is
  discovered to be invalid, and the error is signalled by an
  HTTP 400 response.
  

Problem conclusion

• CICS has been changed to correctly escape any non-URI
  characters (including spaces) contained within the selector
  values returned by the Atom service routine, using percent
  encoding. Furthermore, when percent-encoded URIs are converted
  to XML for insertion into the Atom response documents, the
  percent-encoded spaces are not decoded back into regular
  spaces, and remain as percent-encoded values.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

Modules/Macros

• DESWBUX  DESW2FD  DFHWBUX  DFHWBUXA DFHWBUXM
  DFHWBUXT DFHW2AC  DFHW2FD  DFHW2TT  DFHW2W2
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R600 PSY UK50385

     UP09/10/02 P F910

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.