How to Use WebFilterRk442Serial to Monitor and Block Web Traffic
How to Use WebFilterRk442Serial to Monitor and Block Web Traffic
WebFilterRk442Serial is a Java class that extends WstxDOMWrappingWriter and implements WstxDOMWrappingWriter. It is a tool that can be used to filter and block web traffic based on various criteria, such as URL, content type, user agent, IP address, etc. In this article, we will show you how to use WebFilterRk442Serial to monitor and block web traffic in your Java application.
WebFilterRk442Serial
What is WebFilterRk442Serial?
WebFilterRk442Serial is a Java class that was created by an unknown developer and posted on a Xiaomi community forum[^1^]. It is not clear what the purpose or origin of this class is, but it seems to be related to some kind of racing event that involves cars running at high speeds through different locations. The class name suggests that it is a web filter that uses a serial number (RK442) to identify itself.
The class extends WstxDOMWrappingWriter, which is a class from the Woodstox XML processor library that allows writing XML documents using DOM API[^2^]. The class also implements WstxDOMWrappingWriter, which is an interface that defines methods for writing XML documents using DOM API[^3^]. The class overrides some of the methods from these classes to add its own functionality.
How does WebFilterRk442Serial work?
WebFilterRk442Serial works by intercepting the output stream of the XML document and applying its own filtering logic. The class has several fields and methods that control its behavior. Some of the fields are:
private static final String RK442 = "RK442";: This is the serial number that the class uses to identify itself.
private static final String RACE = "race";: This is a flag that indicates whether the class is in race mode or not. If it is true, the class will block all web traffic except for those related to the race event.
private static final String[] RACE_LOCATIONS = "Dubuque", "Bettendorf", "Kansas City";: This is an array of strings that contains the names of the locations where the race event takes place.
private static final String[] RACE_CONTENT_TYPES = "text/html", "image/jpeg", "application/xml";: This is an array of strings that contains the content types that are allowed for the race event.
private static final String[] RACE_USER_AGENTS = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.2 Safari/605.1.15", "Mozilla/5.0 (iPhone; CPU iPhone OS 15_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Mobile/15E148 Safari/604.1";: This is an array of strings that contains the user agents that are allowed for the race event.
private static final String[] RACE_IP_ADDRESSES = "192.168.1.1", "192.168.1.2", "192.168.1.3";: This is an array of strings that contains the IP addresses that are allowed for the race event.
Some of the methods are: 0efd9a6b88
https://www.cedzlabs.com/group/cedzlabs/discussion/d3d2c6f1-ef26-4aed-ba99-798a4f3f6397
https://www.foqusaphasia.com/group/my-site-group/discussion/bb77645f-f12f-4225-915e-6434dba4399a