PI67942: JAVAX.SERVLET.HTTPSERVLETREQUEST.GETREQUESTURI() MIGHT RETURN A DECODED VALUE AFTER DISPATCHING

Fixes are available

APAR status

Closed as program error.

Error description

Invoking HttpServletRequest.getRequestURI() returns a decoded
URI if it is invoked after dispatching the request when a
decoded path was passed to
javax.servlet.ServletRequest.getRequestDispatcher(String
path).

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server versions   *
*                  8.5.5 and 9.0, and Websphere Application    *
*                  Server Liberty users of Web Container.      *
****************************************************************
* PROBLEM DESCRIPTION: Invoking                                *
*                      HttpServletRequest.getRequestURI()      *
*                      after dispatching the request           *
*                      incorrectly returns a decoded URI if a  *
*                      decoded path was passed to              *
*                      javax.servlet.ServletRequest.getRequest *
*                      Dispatcher() or                         *
*                      javax.servlet.AsyncContext.dispatch()   *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If a decoded path is used when invoking
ServletRequest.getRequestDispatcher() or one of the
AsyncContext.dispatch() methods,
HttpServletRequest.getRequestURI() returns a decoded URI
instead of an encoded URI after the request has been
dispatched.
The following is an example of this problem:
ServletA:
...
request.getRequestDispatcher("/ServletB/a b").forward();
...
ServletB:
...
String uri = request.getRequestURI();
...
The "uri" variable in ServletB will have the following value:
/ServletB/a b
The getRequestURI() method should return an URL encoded value.

Problem conclusion

The WebContainer has been modified to return a decoded URI
when invoking HttpServletRequest.getRequestURI() after
dispatching.

A new context parameter needs to be set to true in the
application's web.xml to enable this fix. If this fix is
enabled, the developer must make sure that any invocations to
ServletRequest.getRequestDispatcher() and
AsyncContext.dispatch() are being done using decoded paths as
a parameter:

<context-param>

<param-name>com.ibm.ws.webcontainer.ENCODE_DISPATCHED_REQUEST_UR
I</param-name>
        <param-value>true</param-value>
</context-param>

After enabling the fix the "uri" variable in the example above
will have the following value:

/ServletB/a%20b

If an encoded path is used when invoking
ServletRequest.getRequestDispatcher() and
AsyncContext.dispatch() when this fix is enabled the "uri"
variable will have the following value:

/ServletB/a%2520b

This will be considered an application error and can be fixed
by using decoded paths when invoking
ServletRequest.getRequestDispatcher() and
AsyncContext.dispatch().

The fix for this APAR is currently targeted for inclusion in
fix packs 8.5.5.11, 9.0.0.2 and 16.0.0.3. Please refer to the
recommended updates page for delivery information:

http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Comments

APAR Information

APAR number
PI67942
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-23
Closed date
2016-09-21
Last modified date
2016-09-21

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
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R850 PSY
UP
R900 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI67942: JAVAX.SERVLET.HTTPSERVLETREQUEST.GETREQUESTURI() MIGHT RETURN A DECODED VALUE AFTER DISPATCHING

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R850 PSY

R900 PSY

Document Information

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