How does it work?
This criterion lets you match based on the file extensions in the incoming requests. It doesn’t examine data such as query strings that may be appended to an extension.
Operators
You can select the following logical conditions:
| Value | The Rule is True When… |
|---|---|
| is one of | the incoming request includes any of the specified file extensions. |
| is not one of | the incoming request does not include any of the provided file extensions. |
Select the file extensions from the drop-down list or enter them manually without the dot at the beginning. For example jpg,png,gif, etc
For a large number of values, you can paste the extensions and separate them with a space, comma, or carriage return.
The file extension match supports the following wildcards with all operators:
| Wildcard | Description | Example |
|---|---|---|
| * | matches zero or more characters | The rule includes a match with a file extension of do*. Some possible valid results for this wildcard are doc, docx, docm. |
| ? | matches a single character | The rule includes a match with a file extension of do?. Some possible valid results for this wildcard are doc, dot, dos. Some possible invalid results are: docx and docm. |
Additional options
- Case-sensitive. If you select this option, the file extension in the incoming request has to match the case of the entry.