ExtensionCheckFacade (formcycle: bom 8.4.0 API)

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 Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`isNotProcessable(org.apache.commons.fileupload.FileItem fileItem)`
`static MalwareScanReport`	`reportExtensionMismatch(org.apache.commons.fileupload.FileItem fileItem)`	Performs the extension check and creates a report if the check fails.
`static ExtensionCheckSettings`	`settings()`
`static Function<String,Set<String>>`	`systemMimeMapper()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - 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