psdi.webclient.system.filter

Class HttpRequestModifyWrapper

java.lang.Object

javax.servlet.ServletRequestWrapper

javax.servlet.http.HttpServletRequestWrapper

psdi.webclient.system.filter.HttpRequestModifyWrapper

All Implemented Interfaces:

javax.servlet.http.HttpServletRequest, javax.servlet.ServletRequest

public final class HttpRequestModifyWrapper
extends javax.servlet.http.HttpServletRequestWrapper

Provides a convenient implementation of the HttpServletRequest interface that can be subclassed by developers wishing to adapt the request to a Servlet. This class implements the Wrapper or Decorator pattern. Methods default to calling through to the wrapped request object.

Author:

Mitesh Mistry

Field Summary

Fields inherited from interface javax.servlet.http.HttpServletRequest

BASIC_AUTH, CLIENT_CERT_AUTH, DIGEST_AUTH, FORM_AUTH

Constructor Summary

Constructors

Constructor and Description
HttpRequestModifyWrapper(javax.servlet.http.HttpServletRequest servletRequest) Build the hashmap for init param and Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getParameter(java.lang.String parameter) Returns the value of a request parameter as a String, or null if the parameter does not exist.
java.lang.String[]	getParameterValues(java.lang.String parameter) Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist.
java.lang.String	securitySafeWithHTMLEncoding(java.lang.String aText) Returns the cross site vulnerability safe value of a request parameter

Methods inherited from class javax.servlet.http.HttpServletRequestWrapper

getAuthType, getContextPath, getCookies, getDateHeader, getHeader, getHeaderNames, getHeaders, getIntHeader, getMethod, getPathInfo, getPathTranslated, getQueryString, getRemoteUser, getRequestedSessionId, getRequestURI, getRequestURL, getServletPath, getSession, getSession, getUserPrincipal, isRequestedSessionIdFromCookie, isRequestedSessionIdFromUrl, isRequestedSessionIdFromURL, isRequestedSessionIdValid, isUserInRole

Methods inherited from class javax.servlet.ServletRequestWrapper

getAttribute, getAttributeNames, getCharacterEncoding, getContentLength, getContentType, getInputStream, getLocalAddr, getLocale, getLocales, getLocalName, getLocalPort, getParameterMap, getParameterNames, getProtocol, getReader, getRealPath, getRemoteAddr, getRemoteHost, getRemotePort, getRequest, getRequestDispatcher, getScheme, getServerName, getServerPort, isSecure, removeAttribute, setAttribute, setCharacterEncoding, setRequest

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.ServletRequest

getAttribute, getAttributeNames, getCharacterEncoding, getContentLength, getContentType, getInputStream, getLocalAddr, getLocale, getLocales, getLocalName, getLocalPort, getParameterMap, getParameterNames, getProtocol, getReader, getRealPath, getRemoteAddr, getRemoteHost, getRemotePort, getRequestDispatcher, getScheme, getServerName, getServerPort, isSecure, removeAttribute, setAttribute, setCharacterEncoding

Constructor Detail

HttpRequestModifyWrapper

public HttpRequestModifyWrapper(javax.servlet.http.HttpServletRequest servletRequest)

Build the hashmap for init param and Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist. If the parameter has a single value, the array has a length of 1.

Parameters:

a - String containing the name of the parameter whose value is requested

Method Detail

getParameterValues

public java.lang.String[] getParameterValues(java.lang.String parameter)

Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist. If the parameter has a single value, the array has a length of 1.

Specified by:

getParameterValues in interface javax.servlet.ServletRequest

Overrides:

getParameterValues in class javax.servlet.ServletRequestWrapper

Parameters:

name - a String containing the name of the parameter whose value is requested

Returns:

an array of String objects containing the parameter's values

getParameter

public java.lang.String getParameter(java.lang.String parameter)

Returns the value of a request parameter as a String, or null if the parameter does not exist. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data. You should only use this method when you are sure the parameter has only one value. If the parameter might have more than one value, use getParameterValues(java.lang.String). If you use this method with a multivalued parameter, the value returned is equal to the first value in the array returned by getParameterValues. If the parameter data was sent in the request body, such as occurs with an HTTP POST request, then reading the body directly via getInputStream() or getReader() can interfere with the execution of this method.

Specified by:

getParameter in interface javax.servlet.ServletRequest

Overrides:

getParameter in class javax.servlet.ServletRequestWrapper

Parameters:

name - a String specifying the name of the parameter

Returns:

a String representing the single value of the parameter

securitySafeWithHTMLEncoding

public java.lang.String securitySafeWithHTMLEncoding(java.lang.String aText)

Returns the cross site vulnerability safe value of a request parameter

Parameters:

aText - a String specifying the value to check

Returns:

a String representing the safe value based on cross site vulnerability