Package org.apache.catalina.filters

Class HttpHeaderSecurityFilter

java.lang.Object

org.apache.catalina.filters.FilterBase

org.apache.catalina.filters.HttpHeaderSecurityFilter

All Implemented Interfaces:

Filter

public class HttpHeaderSecurityFilter
extends FilterBase

Provides a single configuration point for security measures that required the addition of one or more HTTP headers to the response.

Field Summary

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

sm

Constructor Summary

Constructors

Constructor	Description
HttpHeaderSecurityFilter()

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	getAntiClickJackingOption()
String	getAntiClickJackingUri()
int	getHstsMaxAgeSeconds()
protected Log	getLogger()
void	init(FilterConfig filterConfig)	Iterates over the configuration parameters and either logs a warning, or throws an exception for any parameter that does not have a matching setter in this filter.
boolean	isAntiClickJackingEnabled()
boolean	isBlockContentTypeSniffingEnabled()
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.
boolean	isHstsEnabled()
boolean	isHstsIncludeSubDomains()
boolean	isHstsPreload()
void	setAntiClickJackingEnabled(boolean antiClickJackingEnabled)
void	setAntiClickJackingOption(String antiClickJackingOption)
void	setAntiClickJackingUri(String antiClickJackingUri)
void	setBlockContentTypeSniffingEnabled(boolean blockContentTypeSniffingEnabled)
void	setHstsEnabled(boolean hstsEnabled)
void	setHstsIncludeSubDomains(boolean hstsIncludeSubDomains)
void	setHstsMaxAgeSeconds(int hstsMaxAgeSeconds)
void	setHstsPreload(boolean hstsPreload)

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

HttpHeaderSecurityFilter

public HttpHeaderSecurityFilter()

Method Details

init

public void init(FilterConfig filterConfig)
          throws ServletException

Description copied from class: FilterBase

Iterates over the configuration parameters and either logs a warning, or throws an exception for any parameter that does not have a matching setter in this filter.

Specified by:

init in interface Filter

Overrides:

init in class FilterBase

Parameters:

filterConfig - The configuration information associated with the filter instance being initialised

Throws:

ServletException - if FilterBase.isConfigProblemFatal() returns true and a configured parameter does not have a matching setter

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

protected Log getLogger()

Specified by:

getLogger in class FilterBase

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

isHstsEnabled

public boolean isHstsEnabled()

setHstsEnabled

public void setHstsEnabled(boolean hstsEnabled)

getHstsMaxAgeSeconds

public int getHstsMaxAgeSeconds()

setHstsMaxAgeSeconds

public void setHstsMaxAgeSeconds(int hstsMaxAgeSeconds)

isHstsIncludeSubDomains

public boolean isHstsIncludeSubDomains()

setHstsIncludeSubDomains

public void setHstsIncludeSubDomains(boolean hstsIncludeSubDomains)

isHstsPreload

public boolean isHstsPreload()

setHstsPreload

public void setHstsPreload(boolean hstsPreload)

isAntiClickJackingEnabled

public boolean isAntiClickJackingEnabled()

setAntiClickJackingEnabled

public void setAntiClickJackingEnabled(boolean antiClickJackingEnabled)

getAntiClickJackingOption

public String getAntiClickJackingOption()

setAntiClickJackingOption

public void setAntiClickJackingOption(String antiClickJackingOption)

getAntiClickJackingUri

public String getAntiClickJackingUri()

isBlockContentTypeSniffingEnabled

public boolean isBlockContentTypeSniffingEnabled()

setBlockContentTypeSniffingEnabled

public void setBlockContentTypeSniffingEnabled(boolean blockContentTypeSniffingEnabled)

setAntiClickJackingUri

public void setAntiClickJackingUri(String antiClickJackingUri)