WebSocketInspectionFilter

Experimental Filter

Use the WebSocketInspectionFilter to inspect and validate WebSocket streams. Only text streams are supported.

Classname

ch::nevis::nevisproxy::filter::validation::WebSocketInspectionFilter

Library

libValidationFilters.so.1

Configuration

MinimalWindowSize

Type: integer
Range: min: 10
Usage Constraints: optional
Default: 1024

The size of the minimal number of bytes within the regex has to match.

FrontendRules

Type: newline-separated regular expressions
Usage Constraints: optional

If a text stream coming from the frontend matches one of the configured regular expressions, then the WebSocket connection is closed and a WS01 event is traced in the navajo.log.

BackendRules

Type: newline-separated regular expressions
Usage Constraints: optional

If a text stream coming from the backend matches one of the configured regular expressions, then the WebSocket connection is closed and a WS01 event is traced in the navajo.log.

AlertLevel

Type: enum
Possible values: ERROR, NOTICE, INFO
Default: ERROR

Configures the alert level of the traced event WS01, when a WebSocket connection is closed due to a rule violation.