Issue Summary

Object schema zip import failed with Import file not found error if the Insight import directory is a symlink or in a symlink directory

Steps to Reproduce

1. On a Jira Data center instance, set up symlink for the shared home directory and use it. Example:

   $ ln -s /Users/support/jiradc/sharedhome /Users/jira/directory/sharedhome
   $ pwd
   /Users/jira/directory/
   $ ls -al
   rwxr-xr-x   1 support  staff     37 Apr 21 11:25 sharedhome -> /Users/support/jiradc/sharedhome
   

   In the cluster.properties file, make sure the jira.shared.home is pointing to the symlink correctly.

2. Create an object schema and export it as a zip file as per Object Schema Export. Make sure the zip file is exported to the export/insight folder in the symlink directory.
3. Copy the zip file from the <symlink>/export/insight folder into <symlink>/import/insight folder.
4. Import the zip file as per Object Schema Import.

Expected Results

The object schema is imported successfully

Actual Results

• The import failed with error "NotFoundInsightException: Import file not found" on the screen.
  
• If you check the <Jira_installation>/temp directory, you will find empty folder with name like "insight_import<a string of numbers>" for every failed attempt of object schema zip import.
• The below exception is thrown in the insight_objectschema_import.log file:

  2021-04-21 11:48:40,787 [http-nio-1121-exec-3] | Initial error, when unzipping file: , Error: NotFoundInsightException: Import file not found
  com.riadalabs.jira.plugins.insight.common.exception.NotFoundInsightException: NotFoundInsightException: Import file not found
  	at com.riadalabs.jira.plugins.insight.services.imports.schema.ObjectSchemaImportServiceImpl.validateFilePath(ObjectSchemaImportServiceImpl.java:928)
  	at com.riadalabs.jira.plugins.insight.services.imports.schema.ObjectSchemaImportServiceImpl.unzipImportFile(ObjectSchemaImportServiceImpl.java:917)
  	at com.riadalabs.jira.plugins.insight.services.imports.schema.ObjectSchemaImportServiceImpl.shouldWarnBeforeImport(ObjectSchemaImportServiceImpl.java:865)
  	at com.riadalabs.jira.plugins.insight.channel.web.api.rest.services.ObjectSchemaImportResource.noWarnings(ObjectSchemaImportResource.java:120)
  ...
  2021-04-21 11:48:40,821 [http-nio-1121-exec-1] | Resource: Import object schema to server, in data:com.riadalabs.jira.plugins.insight.channel.web.api.rest.model.imports.schema.ImportObjectSchemaInEntry@53ebc5e6[fileName=testexport.zip,objectSchemaName=IXHG,objectSchemaKey=IXHG,objectSchemaDescription=<null>,password=<null>,includeObjects=true,importAttachments=true,importObjectAvatars=true]
  

Workaround

Do not use symlink for the Insight import folder