Can the maximum string length for process parameters be increased?

[bajwaya]

When we invoke our AEM processes via REST endpoints - i.e. processes created in Adobe Workbench, we are getting an error if the string exceeds 2000 characters:

Invalid input. The maximum length of 2000 characters was exceeded.
at org.owasp.esapi.reference.validation.StringValidationRule.checkLength(StringValidationRule.java:214) [esapi-2.1.0.1.jar:2.1.0.1]​

at org.owasp.esapi.reference.validation.StringValidationRule.checkLength(StringValidationRule.java:229) [esapi-2.1.0.1.jar:2.1.0.1]​

at org.owasp.esapi.reference.validation.StringValidationRule.getValid(StringValidationRule.java:281) [esapi-2.1.0.1.jar:2.1.0.1]​

at org.owasp.esapi.reference.DefaultValidator.getValidInput(DefaultValidator.java:214) [esapi-2.1.0.1.jar:2.1.0.1]​

at com.adobe.util.XSSValidatorHelper.validateXSSInput(XSSValidatorHelper.java:29) [adobe-utilities.jar:6.3.0.20190826.1.337248]​

at com.adobe.idp.dsc.provider.impl.rest.RestServlet.getSafeParameterMap(RestServlet.java:1358) [adobe-rest-provider.jar:6.3.0.20190826.1.337248]​

at com.adobe.idp.dsc.provider.impl.rest.RestServlet.handleInputParams(RestServlet.java:577) [adobe-rest-provider.jar:6.3.0.20190826.1.337248]​

at com.adobe.idp.dsc.provider.impl.rest.RestServlet.doPost(RestServlet.java:284) [adobe-rest-provider.jar:6.3.0.20190826.1.337248]​

Is there a way to increase the maximum allowed length?

[Jaideep_Brar]

For Json results, it will be the "max json results" at the default get servlet[1]

[1] http://<host>:<port>/system/console/configMgr/org.apache.sling.servlets.get.DefaultGetServlet

[wasil_z]

It is not recommended to send whole data in the query parameters rather in the body. Please try the same by sending the data in body.

Thanks,

Wasil

[bajwaya]

It is being sent in the body:

at com.adobe.idp.dsc.provider.impl.rest.RestServlet.doPost(RestServlet.java:284) [adobe-rest-provider.jar:6.3.0.20190826.1.337248]

Thank you,

Yasir

[wasil_z · Accepted solution]

Then check following :

• If the workspace is customized, update with new SDK at  \Adobe_Experience_Manager_Forms\sdk\html-workspace
• Follow the KB : AEM Forms blocks valid HTTP requests
• Reach out to AEM Support team at DayCare : Adobe AEM CQ Support Portal - Contact ​ with steps/collaterals to replicate the issue.

Thanks

Wasil