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Posted to user@struts.apache.org by enthucoder <sr...@wachovia.com> on 2007/11/08 01:10:15 UTC
[S1.3]Strange problem with validation.xml's Regex
Hi,
I am validating a condition : Input should not contain any of these
characters &,",<,>,%,(,)
And to achieve this my RegEx is : ^[^(\&|"|<|>|%|\(|\))]+$
Also here is my code snippet from validation.xml:
<constant>
<constant-name>noSpecialCharacters</constant-name>
<constant-value>^[^(\&|"|<|>|%|\(|\))]+$</constant-value>
</constant>
But, when i add the above element to validation.xml, I get following error
message in my sandbox logs(Tomcat 5.5):
Nov 7, 2007 3:59:41 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet action as unavailable
Nov 7, 2007 3:59:41 PM org.apache.catalina.core.StandardContext
loadOnStartup
SEVERE: Servlet /AnotherEntrCoun threw load() exception
javax.servlet.UnavailableException: Cannot load a validator resource from
'/WEB-INF/validator-rules.xml, /WEB-INF/validation.xml'
at
org.apache.struts.validator.ValidatorPlugIn.init(ValidatorPlugIn.java:171)
at
org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:884)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:356)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3951)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4225)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:608)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1190)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:292)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1305)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1569)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1558)
at java.lang.Thread.run(Thread.java:595)
One of the many tests, i did to prove that the above error is 'indeed'
because of the REGEX, i tried substituing it with following code in
validation.xml with:
<constant>
<constant-name>noSpecialCharacters</constant-name>
<constant-value>>.</constant-value>
</constant>
This time, my container does complain. My container is also happy when i
remove the problematic code completely.
I also tried to validate my REGEX -start ^[^(\&|"|<|>|%|\(|\))]+$ end- with
a 'java.util.regex' based validator, It works the way, it is supposed to.
Here is the link of the validator
"http://www.fileformat.info/tool/regex.htm", used by me.
It can well turn out to be a simple issue, please help me in getting it to
work.
.H
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Re: [struts] [S1.3]Strange problem with validation.xml's Regex
Posted by Dale Newfield <Da...@Newfield.org>.
Dale Newfield wrote:
> enthucoder wrote:
>> I am validating a condition : Input should not contain any of these
>> characters &,",<,>,%,(,)
>> And to achieve this my RegEx is : ^[^(\&|"|<|>|%|\(|\))]+$
>
> That should be: ^["&<>%()]*$
D'oh! That should be: ^[^"&<>%()]*$
-Dale
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Re: [struts] [S1.3]Strange problem with validation.xml's Regex
Posted by Dale Newfield <Da...@Newfield.org>.
enthucoder wrote:
> I am validating a condition : Input should not contain any of these
> characters &,",<,>,%,(,)
>
> And to achieve this my RegEx is : ^[^(\&|"|<|>|%|\(|\))]+$
That should be: ^["&<>%()]*$
(using + instead of * at the end adds the restriction that the field
must contain at least one character).
The other problem you're having is that you're putting this in an XML
document. Either it must be valid XML (for example, & -> &), or it
must be enclosed in a CDATA block.
-Dale
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