org.springframework.security.web.header.writers.frameoptions

Class RegExpAllowFromStrategy

java.lang.Object

org.springframework.security.web.header.writers.frameoptions.RegExpAllowFromStrategy

All Implemented Interfaces:

AllowFromStrategy

public final class RegExpAllowFromStrategy
extends Object

Implementation which uses a regular expression to validate the supplied origin. If the value of the HTTP parameter matches the pattern, then the the result will be ALLOW-FROM <paramter-value>.

Since:

3.2

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.commons.logging.Log	log Logger for use by subclasses

Constructor Summary

Constructors

Constructor and Description
RegExpAllowFromStrategy(String pattern) Creates a new instance

Method Summary

Modifier and Type	Method and Description
protected boolean	allowed(String allowFromOrigin) Method to be implemented by base classes, used to determine if the supplied origin is allowed.
String	getAllowFromValue(javax.servlet.http.HttpServletRequest request) Gets the value for ALLOW-FROM excluding the ALLOW-FROM.
void	setAllowFromParameterName(String allowFromParameterName) Sets the HTTP parameter used to retrieve the value for the origin that is allowed from.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected final org.apache.commons.logging.Log log

Logger for use by subclasses

Constructor Detail

RegExpAllowFromStrategy

public RegExpAllowFromStrategy(String pattern)

Creates a new instance

Parameters:

pattern - the Pattern to compare against the HTTP parameter value. If the pattern matches, the domain will be allowed, else denied.

Method Detail

allowed

protected boolean allowed(String allowFromOrigin)

Method to be implemented by base classes, used to determine if the supplied origin is allowed.

Parameters:

allowFromOrigin - the supplied origin

Returns:

true if the supplied origin is allowed.

getAllowFromValue

public String getAllowFromValue(javax.servlet.http.HttpServletRequest request)

Description copied from interface: AllowFromStrategy

Gets the value for ALLOW-FROM excluding the ALLOW-FROM. For example, the result might be "https://example.com/".

Specified by:

getAllowFromValue in interface AllowFromStrategy

Parameters:

request - the HttpServletRequest

Returns:

the value for ALLOW-FROM or null if no header should be added for this request.

setAllowFromParameterName

public void setAllowFromParameterName(String allowFromParameterName)

Sets the HTTP parameter used to retrieve the value for the origin that is allowed from. The value of the parameter should be a valid URL. The default parameter name is "x-frames-allow-from".

Parameters:

allowFromParameterName - the name of the HTTP parameter to