Replacer is a class that replaces placeholders in a string with values from a DNSRequest or DNSResponse.
The replacerMap is a map of keys to functions that take a DNSRequest or DNSResponse and return a string.
The default log format replaces the following keys:
remote: The remote address of the connection
port: The remote port of the connection
operation: The operation being performed (query or response)
id: The ID of the packet
type: The rrtype of the question
class: The rrclass of the question
name: The name of the question
proto: The protocol being used (UDP, TCP, DoH, etc.)
rcode: The response code of the packet
rflags: The flags of the packet, comma-separated
duration: The duration of the request in seconds (only available for responses)
You may customize this format by providing a different format string to the constructor.
If you use keys not in the replacerMap, you will need to provide a custom replacer function for that key
or it will not be replaced.
You may also provide any custom class that satisifes the replacer interface's replace method.
Replacer is a class that replaces placeholders in a string with values from a DNSRequest or DNSResponse. The replacerMap is a map of keys to functions that take a DNSRequest or DNSResponse and return a string.
The default log format replaces the following keys:
You may customize this format by providing a different format string to the constructor. If you use keys not in the replacerMap, you will need to provide a custom replacer function for that key or it will not be replaced.
You may also provide any custom class that satisifes the replacer interface's replace method.