Package de.xima.fc.web.common.mime

Class ExtensionCheckFacade

java.lang.Object
de.xima.fc.web.common.mime.ExtensionCheckFacade
public final class ExtensionCheckFacade extends Object
Processes the extension check (i.e. the verification of a file's extension against its content) and reports the results.

  • Method Details

    • isNotProcessable

      public static boolean isNotProcessable(org.apache.commons.fileupload.FileItem fileItem)
      Parameters:
      fileItem - A file item to check.
      Returns:
      true, if the provided file item cannot be processed by the extension check (e.g. because it has no name)

    • settings

      public static ExtensionCheckSettings settings()
      Returns:
      the current (system property based) extension check settings

    • systemMimeMapper

      public static Function<String,Set<String>> systemMimeMapper()
      Returns:
      the MIME mapping functionality provided by the system (based on default and user-defined mappings)

    • reportExtensionMismatch

      public static MalwareScanReport reportExtensionMismatch(org.apache.commons.fileupload.FileItem fileItem)
      Performs the extension check and creates a report if the check fails. In case of unexpected problems, corresponding log entries are written to the system protocol.
      Parameters:
      fileItem - the file item to process (must not be null)
      Returns:
      the check's result, either a description of the failed check wrapped by a malware scan report or null, if the extension matched the detected content type