Adobe Experience Manager Sites & More

jegadeeshanm · 08/08/2018

Hello everyone,

we have a functionality to upload pdf from an another application (.net) using httprequest directly to AEM. It was working fine in 6.1 but not in 6.3, we are getting "500-internal server error" in response. Is there any additional configuration to be made in 6.3?

we are posting file directly to https://www.sample.com/content/project/files

Thanks in advance.

Thanks

Jegadeeshan

Endoriel · 09/08/2018

I think you probably found the root of your issue. It seems to me that your POST request is being sent directly to the Sling Post Servlet on the publish server without any authentication so it defaults to anonymous user (part of everyone group) and this user doesn't have write permissions for that path (/content/******/files). Alternatively you might be missing some of the details Sling Post Servlet requires to service your request and create the new resources in the JCR or the path doesn't actually exist? Documentation for Sling Post Servlet

If it's just a permission issue because you don't authenticate your request then I suggest you should create a special user for your external application with ACLs for that path and send the user details through basic http authentication request header.

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arunpatidar · 08/08/2018

Hi,

What error you are getting in AEM? 500 means code issue. If you are getting 403 in AEM then you need to check "Apache Sling Referrer Filter" configuration to allow post request from your domain.

You can see more security related changes for 6.1+

https://taylor.callsen.me/security-and-java-servlets-in-aem-6-1/

Thanks

Arun

Arun Patidar

jegadeeshanm · 08/08/2018

Hi Arun,

This functionality is working in my local instance. So I guess I am missing some configuration in dev environment.

Below is the error msg:

Error while processing /content/project/files

org.apache.sling.api.SlingException: Exception during response processing

Thanks

Jegadeeshan

arunpatidar · 08/08/2018

Hi,

Above error is not useful to find actual problem.

Could you please share error exception trace?

Arun Patidar

jegadeeshanm · 08/08/2018

Here it is.

08.08.2018 05:52:21.534 *ERROR* [10.43.32.42 [1533721941532] POST /content/******/files HTTP/1.1] org.apache.sling.servlets.post.impl.operations.ModifyOperation Exception during response processing.

java.lang.IllegalArgumentException: Can't create child on a synthetic root

at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:1156)

at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.deepGetOrCreateNode(AbstractCreateOperation.java:584)

at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.processCreate(AbstractCreateOperation.java:107)

at org.apache.sling.servlets.post.impl.operations.ModifyOperation.doRun(ModifyOperation.java:91)

at org.apache.sling.servlets.post.AbstractPostOperation.run(AbstractPostOperation.java:97)

at org.apache.sling.servlets.post.impl.SlingPostServlet.doPost(SlingPostServlet.java:205)

at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:149)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:346)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:378)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:156)