Package org.apache.catalina.filters

Class RemoteCIDRFilter

java.lang.Object

org.apache.catalina.filters.FilterBase

org.apache.catalina.filters.RemoteCIDRFilter

All Implemented Interfaces:

Filter

public final class RemoteCIDRFilter
extends FilterBase

Field Summary

Fields inherited from class org.apache.catalina.filters.FilterBase

sm

Constructor Summary

Constructors

Constructor	Description
RemoteCIDRFilter()

Method Summary

Modifier and Type	Method	Description
void	doFilter(ServletRequest request, ServletResponse response, FilterChain chain)	The doFilter method of the Filter is called by the container each time a request/response pair is passed through the chain due to a client request for a resource at the end of the chain.
String	getAllow()	Return a string representation of the NetMask list in #allow.
String	getDeny()	Return a string representation of the NetMask list in #deny.
Log	getLogger()
protected boolean	isConfigProblemFatal()	Determines if an exception when calling a setter or an unknown configuration attribute triggers the failure of the this filter which in turn will prevent the web application from starting.
void	setAllow(String input)	Fill the #allow list with the list of netmasks provided as an argument, if any.
void	setDeny(String input)	Fill the #deny list with the list of netmasks provided as an argument, if any.

Methods inherited from class org.apache.catalina.filters.FilterBase

init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface jakarta.servlet.Filter

destroy

Constructor Details

RemoteCIDRFilter

public RemoteCIDRFilter()

Method Details

getAllow

public String getAllow()

Return a string representation of the NetMask list in #allow.

Returns:

the #allow list as a string, without the leading '[' and trailing ']'

setAllow

public void setAllow(String input)

Fill the #allow list with the list of netmasks provided as an argument, if any. Calls #fillFromInput.

Parameters:

input - The list of netmasks, as a comma separated string

Throws:

IllegalArgumentException - One or more netmasks are invalid

getDeny

public String getDeny()

Return a string representation of the NetMask list in #deny.

Returns:

the #deny list as string, without the leading '[' and trailing ']'

setDeny

public void setDeny(String input)

Fill the #deny list with the list of netmasks provided as an argument, if any. Calls #fillFromInput.

Parameters:

input - The list of netmasks, as a comma separated string

Throws:

IllegalArgumentException - One or more netmasks are invalid

isConfigProblemFatal

protected boolean isConfigProblemFatal()

Description copied from class: FilterBase

Determines if an exception when calling a setter or an unknown configuration attribute triggers the failure of the this filter which in turn will prevent the web application from starting.

Overrides:

isConfigProblemFatal in class FilterBase

Returns:

true if a problem should trigger the failure of this filter, else false

doFilter

public void doFilter(ServletRequest request,
 ServletResponse response,
 FilterChain chain)
              throws IOException,
ServletException

Description copied from interface: jakarta.servlet.Filter

The doFilter method of the Filter is called by the container each time a request/response pair is passed through the chain due to a client request for a resource at the end of the chain. The FilterChain passed in to this method allows the Filter to pass on the request and response to the next entity in the chain.

A typical implementation of this method would follow the following pattern:-
1. Examine the request
2. Optionally wrap the request object with a custom implementation to filter content or headers for input filtering
3. Optionally wrap the response object with a custom implementation to filter content or headers for output filtering
4. a) Either invoke the next entity in the chain using the FilterChain object (chain.doFilter()),
4. b) or not pass on the request/response pair to the next entity in the filter chain to block the request processing
5. Directly set headers on the response after invocation of the next entity in the filter chain.

Parameters:

request - The request to process

response - The response associated with the request

chain - Provides access to the next filter in the chain for this filter to pass the request and response to for further processing

Throws:

IOException - if an I/O error occurs during this filter's processing of the request

ServletException - if the processing fails for any other reason

getLogger

public Log getLogger()

Specified by:

getLogger in class FilterBase