edu.internet2.middleware.shibboleth.idp.util

Class HttpServletHelper

java.lang.Object

edu.internet2.middleware.shibboleth.idp.util.HttpServletHelper

public class HttpServletHelper
extends Object

A helper class that provides access to internal state from Servlets and hence also JSPs.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ATTRIBUTE_FILTER_ENGINE_SID_CTX_PARAM ServletContext parameter name bearing the ID of the AttributeFilteringEngine service: "AttributeFilterEngineId" .
static String	ATTRIBUTE_RESOLVER_SID_CTX_PARAM ServletContext parameter name bearing the ID of the AttributeResolver service: "AttributeResolverId" .
static String	COOKIE_DOMAIN_PARAM Name of the context initialization parameter that stores the domain to use for all cookies.
static String	DEFAULT_ATTRIBUTE_FILTER_ENGINE_SID Default ID by which the AttributeFilteringEngine is know within the Servlet context: "shibboleth.AttributeFilterEngine" .
static String	DEFAULT_ATTRIBUTE_RESOLVER_SID Default ID by which the AttributeResolver is know within the Servlet context: "shibboleth.AttributeResolver" .
static String	DEFAULT_LOGIN_CTX_PARITION Default name for the StorageService partition which holds LoginContexts: "loginContexts" .
static String	DEFAULT_PROFILE_HANDLER_MNGR_SID Default ID by which the IdPProfileHandlerManager is know within the Servlet context: "shibboleth.HandlerManager" .
static String	DEFAULT_RP_CONFIG_MNGR_SID Default ID by which the RelyingPartyConfigurationManager is know within the Servlet context: "shibboleth.RelyingPartyConfigurationManager" .
static String	DEFAULT_SAML1_AA_SID Default ID by which the SAML1AttributeAuthority is know within the Servlet context: "shibboleth.SAML1AttributeAuthority" .
static String	DEFAULT_SAML2_AA_SID Default ID by which the SAML2AttributeAuthority is know within the Servlet context: "shibboleth.SAML2AttributeAuthority" .
static String	DEFAULT_SESSION_MNGR_SID Default ID by which the SessionManager is know within the Servlet context: "shibboleth.SessionManager" .
static String	DEFAULT_STORAGE_SERVICE_SID Default ID by which the StorageService is know within the Servlet context: "shibboleth.StorageService" .
static String	IDP_SESSION_COOKIE Name of the cookie containing the IdP session ID: "_idp_session" .
private static org.slf4j.Logger	log Class logger.
static String	LOGIN_CTX_KEY_NAME Name of the key to the current authentication login context: "_idp_authn_lc_key" .
static String	LOGIN_CTX_PARTITION_CTX_PARAM ServletContext parameter name bearing the name of the StorageService partition into which LoginContexts are stored: "loginContextPartitionName" .
private static int	loginContextSize Size of login context keys.
private static SecureRandom	prng A SecureRandom PRNG to generate session IDs.
static String	PROFILE_HANDLER_MNGR_SID_CTX_PARAM ServletContext parameter name bearing the ID of the IdPProfileHandlerManager service: "ProfileHandlerMngrId" .
static String	RP_CONFIG_MNGR_SID_CTX_PARAM ServletContext parameter name bearing the ID of the RelyingPartyConfigurationManager service: * * * "RelyingPartyConfigurationManagerId" .
static String	SAML1_AA_SID_CTX_PARAM ServletContext parameter name bearing the ID of the SAML1AttributeAuthority service: "SAML1AttributeAuthorityId" .
static String	SAML2_AA_SID_CTX_PARAM ServletContext parameter name bearing the ID of the SAML2AttributeAuthority service: "SAML2AttributeAuthorityId" .
static String	SESSION_MNGR_SID_CTX_PARAM ServletContext parameter name bearing the ID of the SessionManager service: "SessionManagerId" .
static String	STORAGE_SERVICE_SID_CTX_PARAM ServletContext parameter name bearing the ID of the SAML1AttributeAuthority service: "StorageServiceId" .

Constructor Summary

Constructors

Constructor and Description
HttpServletHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static void	bindLoginContext(LoginContext loginContext, javax.servlet.http.HttpServletRequest httpRequest) Deprecated.
static void	bindLoginContext(LoginContext loginContext, StorageService storageService, javax.servlet.ServletContext context, javax.servlet.http.HttpServletRequest httpRequest, javax.servlet.http.HttpServletResponse httpResponse) Binds a LoginContext to the issuer of the current request.
static AttributeFilteringEngine<?>	getAttributeFilterEnginer(javax.servlet.ServletContext context) Gets the AttributeFilteringEngine service bound to the Servlet context.
static AttributeFilteringEngine<?>	getAttributeFilterEnginer(javax.servlet.ServletContext context, String serviceId) Gets the AttributeFilteringEngine bound to the Servlet context.
static AttributeResolver<?>	getAttributeResolver(javax.servlet.ServletContext context) Gets the AttributeResolver service bound to the Servlet context.
static AttributeResolver<?>	getAttributeResolver(javax.servlet.ServletContext context, String serviceId) Gets the AttributeResolver bound to the Servlet context.
static String	getContextParam(javax.servlet.ServletContext context, String name, String defaultValue) Gets a value for a given context parameter.
static URLBuilder	getContextRelativeUrl(javax.servlet.http.HttpServletRequest httpRequest, String path) Builds a URL to a path that is meant to be relative to the Servlet context.
static javax.servlet.http.Cookie	getCookie(javax.servlet.http.HttpServletRequest httpRequest, String cookieName) Gets the first Cookie whose name matches the given name.
static String	getCookieDomain(javax.servlet.ServletContext context) Gets the domain to use for all cookies.
static LoginContext	getLoginContext(javax.servlet.http.HttpServletRequest httpRequest) Deprecated. use getLoginContext(StorageService, ServletContext, HttpServletRequest) instead
static LoginContext	getLoginContext(StorageService storageService, javax.servlet.ServletContext context, javax.servlet.http.HttpServletRequest httpRequest) Gets the LoginContext for the user issuing the HTTP request.
static IdPProfileHandlerManager	getProfileHandlerManager(javax.servlet.ServletContext context) Gets the IdPProfileHandlerManager service bound to the Servlet context.
static IdPProfileHandlerManager	getProfileHandlerManager(javax.servlet.ServletContext context, String serviceId) Gets the IdPProfileHandlerManager bound to the Servlet context.
static RelyingPartyConfigurationManager	getRelyingPartyConfigurationManager(javax.servlet.ServletContext context) Gets the RelyingPartyConfigurationManager service bound to the Servlet context.
static RelyingPartyConfigurationManager	getRelyingPartyConfigurationManager(javax.servlet.ServletContext context, String serviceId) Gets the RelyingPartyConfigurationManager bound to the Servlet context.
static RelyingPartyConfigurationManager	getRelyingPartyConfirmationManager(javax.servlet.ServletContext context) Deprecated. use getRelyingPartyConfigurationManager(ServletContext)
static RelyingPartyConfigurationManager	getRelyingPartyConfirmationManager(javax.servlet.ServletContext context, String serviceId) Deprecated. use getRelyingPartyConfigurationManager(ServletContext, String)
static EntityDescriptor	getRelyingPartyMetadata(String relyingPartyEntityId, RelyingPartyConfigurationManager rpConfigMngr) Gets the metatdata for a given relying party.
static SAML1AttributeAuthority	getSAML1AttributeAuthority(javax.servlet.ServletContext context) Gets the SAML1AttributeAuthority service bound to the Servlet context.
static SAML1AttributeAuthority	getSAML1AttributeAuthority(javax.servlet.ServletContext context, String serviceId) Gets the SAML1AttributeAuthority bound to the Servlet context.
static SAML2AttributeAuthority	getSAML2AttributeAuthority(javax.servlet.ServletContext context) Gets the SAML2AttributeAuthority service bound to the Servlet context.
static SAML2AttributeAuthority	getSAML2AttributeAuthority(javax.servlet.ServletContext context, String serviceId) Gets the SAML2AttributeAuthority bound to the Servlet context.
static URLBuilder	getServletContextUrl(javax.servlet.http.HttpServletRequest httpRequest) Builds a URL, up to and including the servlet context path.
static SessionManager<Session>	getSessionManager(javax.servlet.ServletContext context) Gets the SessionManager service bound to the Servlet context.
static SessionManager<Session>	getSessionManager(javax.servlet.ServletContext context, String serviceId) Gets the SessionManager bound to the Servlet context.
static StorageService<?,?>	getStorageService(javax.servlet.ServletContext context) Gets the StorageService service bound to the Servlet context.
static StorageService<?,?>	getStorageService(javax.servlet.ServletContext context, String serviceId) Gets the StorageService bound to the Servlet context.
static Session	getUserSession(javax.servlet.http.HttpServletRequest httpRequest) Gets the user session from the request.
static LoginContext	unbindLoginContext(StorageService storageService, javax.servlet.ServletContext context, javax.servlet.http.HttpServletRequest httpRequest, javax.servlet.http.HttpServletResponse httpResponse) Unbinds a LoginContext from the current request.

Methods inherited from class java.lang.Object

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

Field Detail

COOKIE_DOMAIN_PARAM

public static final String COOKIE_DOMAIN_PARAM

Name of the context initialization parameter that stores the domain to use for all cookies.

See Also:

Constant Field Values

IDP_SESSION_COOKIE

public static final String IDP_SESSION_COOKIE

Name of the cookie containing the IdP session ID: "_idp_session" .

See Also:

Constant Field Values

LOGIN_CTX_KEY_NAME

public static final String LOGIN_CTX_KEY_NAME

Name of the key to the current authentication login context: "_idp_authn_lc_key" .

See Also:

Constant Field Values

ATTRIBUTE_FILTER_ENGINE_SID_CTX_PARAM

public static final String ATTRIBUTE_FILTER_ENGINE_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the AttributeFilteringEngine service: "AttributeFilterEngineId" .

See Also:

Constant Field Values

ATTRIBUTE_RESOLVER_SID_CTX_PARAM

public static final String ATTRIBUTE_RESOLVER_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the AttributeResolver service: "AttributeResolverId" .

See Also:

Constant Field Values

LOGIN_CTX_PARTITION_CTX_PARAM

public static final String LOGIN_CTX_PARTITION_CTX_PARAM

ServletContext parameter name bearing the name of the StorageService partition into which LoginContexts are stored: "loginContextPartitionName" .

See Also:

Constant Field Values

PROFILE_HANDLER_MNGR_SID_CTX_PARAM

public static final String PROFILE_HANDLER_MNGR_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the IdPProfileHandlerManager service: "ProfileHandlerMngrId" .

See Also:

Constant Field Values

RP_CONFIG_MNGR_SID_CTX_PARAM

public static final String RP_CONFIG_MNGR_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the RelyingPartyConfigurationManager service: * * * "RelyingPartyConfigurationManagerId" .

See Also:

Constant Field Values

SAML1_AA_SID_CTX_PARAM

public static final String SAML1_AA_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the SAML1AttributeAuthority service: "SAML1AttributeAuthorityId" .

See Also:

Constant Field Values

SAML2_AA_SID_CTX_PARAM

public static final String SAML2_AA_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the SAML2AttributeAuthority service: "SAML2AttributeAuthorityId" .

See Also:

Constant Field Values

SESSION_MNGR_SID_CTX_PARAM

public static final String SESSION_MNGR_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the SessionManager service: "SessionManagerId" .

See Also:

Constant Field Values

STORAGE_SERVICE_SID_CTX_PARAM

public static final String STORAGE_SERVICE_SID_CTX_PARAM

ServletContext parameter name bearing the ID of the SAML1AttributeAuthority service: "StorageServiceId" .

See Also:

Constant Field Values

DEFAULT_ATTRIBUTE_FILTER_ENGINE_SID

public static final String DEFAULT_ATTRIBUTE_FILTER_ENGINE_SID

Default ID by which the AttributeFilteringEngine is know within the Servlet context: "shibboleth.AttributeFilterEngine" .

See Also:

Constant Field Values

DEFAULT_ATTRIBUTE_RESOLVER_SID

public static final String DEFAULT_ATTRIBUTE_RESOLVER_SID

Default ID by which the AttributeResolver is know within the Servlet context: "shibboleth.AttributeResolver" .

See Also:

Constant Field Values

DEFAULT_LOGIN_CTX_PARITION

public static final String DEFAULT_LOGIN_CTX_PARITION

Default name for the StorageService partition which holds LoginContexts: "loginContexts" .

See Also:

Constant Field Values

DEFAULT_PROFILE_HANDLER_MNGR_SID

public static final String DEFAULT_PROFILE_HANDLER_MNGR_SID

Default ID by which the IdPProfileHandlerManager is know within the Servlet context: "shibboleth.HandlerManager" .

See Also:

Constant Field Values

DEFAULT_RP_CONFIG_MNGR_SID

public static final String DEFAULT_RP_CONFIG_MNGR_SID

Default ID by which the RelyingPartyConfigurationManager is know within the Servlet context: "shibboleth.RelyingPartyConfigurationManager" .

See Also:

Constant Field Values

DEFAULT_SAML1_AA_SID

public static final String DEFAULT_SAML1_AA_SID

Default ID by which the SAML1AttributeAuthority is know within the Servlet context: "shibboleth.SAML1AttributeAuthority" .

See Also:

Constant Field Values

DEFAULT_SAML2_AA_SID

public static final String DEFAULT_SAML2_AA_SID

Default ID by which the SAML2AttributeAuthority is know within the Servlet context: "shibboleth.SAML2AttributeAuthority" .

See Also:

Constant Field Values

DEFAULT_SESSION_MNGR_SID

public static final String DEFAULT_SESSION_MNGR_SID

Default ID by which the SessionManager is know within the Servlet context: "shibboleth.SessionManager" .

See Also:

Constant Field Values

DEFAULT_STORAGE_SERVICE_SID

public static final String DEFAULT_STORAGE_SERVICE_SID

Default ID by which the StorageService is know within the Servlet context: "shibboleth.StorageService" .

See Also:

Constant Field Values

prng

private static final SecureRandom prng

A SecureRandom PRNG to generate session IDs.

loginContextSize

private static final int loginContextSize

Size of login context keys.

See Also:

Constant Field Values

log

private static final org.slf4j.Logger log

Class logger.

Constructor Detail

HttpServletHelper

public HttpServletHelper()

Method Detail

bindLoginContext

public static void bindLoginContext(LoginContext loginContext,
                    javax.servlet.http.HttpServletRequest httpRequest)

Deprecated.

Binds a LoginContext to the current request.

Parameters:

loginContext - login context to be bound

httpRequest - current HTTP request

bindLoginContext

public static void bindLoginContext(LoginContext loginContext,
                    StorageService storageService,
                    javax.servlet.ServletContext context,
                    javax.servlet.http.HttpServletRequest httpRequest,
                    javax.servlet.http.HttpServletResponse httpResponse)

Binds a LoginContext to the issuer of the current request. The binding is done by creating a random UUID, placing that in a cookie in the request, and storing the context in to the storage service under that key.

Parameters:

loginContext - the login context to be bound

storageService - the storage service which will hold the context

context - the Servlet context

httpRequest - the current HTTP request

httpResponse - the current HTTP response

getCookieDomain

public static String getCookieDomain(javax.servlet.ServletContext context)

Gets the domain to use for all cookies.

Parameters:

context - web application context

Returns:

domain to use for all cookies

getAttributeFilterEnginer

public static AttributeFilteringEngine<?> getAttributeFilterEnginer(javax.servlet.ServletContext context)

Gets the AttributeFilteringEngine service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getAttributeFilterEnginer

public static AttributeFilteringEngine<?> getAttributeFilterEnginer(javax.servlet.ServletContext context,
                                                    String serviceId)

Gets the AttributeFilteringEngine bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getAttributeResolver

public static AttributeResolver<?> getAttributeResolver(javax.servlet.ServletContext context)

Gets the AttributeResolver service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getAttributeResolver

public static AttributeResolver<?> getAttributeResolver(javax.servlet.ServletContext context,
                                        String serviceId)

Gets the AttributeResolver bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getContextParam

public static String getContextParam(javax.servlet.ServletContext context,
                     String name,
                     String defaultValue)

Gets a value for a given context parameter. If no value is present the default value is used.

Parameters:

context - the Servlet context

name - name of the context parameter

defaultValue - default value of the parameter

Returns:

the value of the context parameter or the default value if the parameter is not set or does not contain a value

getCookie

public static javax.servlet.http.Cookie getCookie(javax.servlet.http.HttpServletRequest httpRequest,
                                  String cookieName)

Gets the first Cookie whose name matches the given name.

Parameters:

cookieName - the cookie name

httpRequest - HTTP request from which the cookie should be extracted

Returns:

the cookie or null if no cookie with that name was given

getLoginContext

public static LoginContext getLoginContext(javax.servlet.http.HttpServletRequest httpRequest)

Deprecated. use getLoginContext(StorageService, ServletContext, HttpServletRequest) instead

Gets the login context from the current request. The login context is only in this location while the request is being transferred from the authentication engine back to the profile handler. This method only works during the first hand-off from the authentication engine to the login handler. Afterwords you must use getLoginContext(StorageService, ServletContext, HttpServletRequest).

Parameters:

httpRequest - current HTTP request

Returns:

the login context or null if no login context is bound to the request

getLoginContext

public static LoginContext getLoginContext(StorageService storageService,
                           javax.servlet.ServletContext context,
                           javax.servlet.http.HttpServletRequest httpRequest)

Gets the LoginContext for the user issuing the HTTP request. Note, login contexts are only available during the authentication process.

Parameters:

context - the Servlet context

storageService - storage service to use when retrieving the login context

httpRequest - current HTTP request

Returns:

the login context or null if none is available

getProfileHandlerManager

public static IdPProfileHandlerManager getProfileHandlerManager(javax.servlet.ServletContext context)

Gets the IdPProfileHandlerManager service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getProfileHandlerManager

public static IdPProfileHandlerManager getProfileHandlerManager(javax.servlet.ServletContext context,
                                                String serviceId)

Gets the IdPProfileHandlerManager bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getRelyingPartyConfigurationManager

public static RelyingPartyConfigurationManager getRelyingPartyConfigurationManager(javax.servlet.ServletContext context)

Gets the RelyingPartyConfigurationManager service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getRelyingPartyConfigurationManager

public static RelyingPartyConfigurationManager getRelyingPartyConfigurationManager(javax.servlet.ServletContext context,
                                                                   String serviceId)

Gets the RelyingPartyConfigurationManager bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getRelyingPartyConfirmationManager

public static RelyingPartyConfigurationManager getRelyingPartyConfirmationManager(javax.servlet.ServletContext context)

Deprecated. use getRelyingPartyConfigurationManager(ServletContext)

Gets the RelyingPartyConfigurationManager service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getRelyingPartyConfirmationManager

public static RelyingPartyConfigurationManager getRelyingPartyConfirmationManager(javax.servlet.ServletContext context,
                                                                  String serviceId)

Deprecated. use getRelyingPartyConfigurationManager(ServletContext, String)

Gets the RelyingPartyConfigurationManager bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getRelyingPartyMetadata

public static EntityDescriptor getRelyingPartyMetadata(String relyingPartyEntityId,
                                       RelyingPartyConfigurationManager rpConfigMngr)

Gets the metatdata for a given relying party.

Parameters:

relyingPartyEntityId - the ID of the relying party

rpConfigMngr - relying party configuration manager

Returns:

the metadata for the relying party or null if no SAML metadata exists for the given relying party

getSAML1AttributeAuthority

public static SAML1AttributeAuthority getSAML1AttributeAuthority(javax.servlet.ServletContext context)

Gets the SAML1AttributeAuthority service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getSAML1AttributeAuthority

public static SAML1AttributeAuthority getSAML1AttributeAuthority(javax.servlet.ServletContext context,
                                                 String serviceId)

Gets the SAML1AttributeAuthority bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getSAML2AttributeAuthority

public static SAML2AttributeAuthority getSAML2AttributeAuthority(javax.servlet.ServletContext context)

Gets the SAML2AttributeAuthority service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getSAML2AttributeAuthority

public static SAML2AttributeAuthority getSAML2AttributeAuthority(javax.servlet.ServletContext context,
                                                 String serviceId)

Gets the SAML2AttributeAuthority bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getSessionManager

public static SessionManager<Session> getSessionManager(javax.servlet.ServletContext context)

Gets the SessionManager service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getSessionManager

public static SessionManager<Session> getSessionManager(javax.servlet.ServletContext context,
                                        String serviceId)

Gets the SessionManager bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getStorageService

public static StorageService<?,?> getStorageService(javax.servlet.ServletContext context)

Gets the StorageService service bound to the Servlet context.

Parameters:

context - the Servlet context

Returns:

the service or null if there is no such service bound to the context

getStorageService

public static StorageService<?,?> getStorageService(javax.servlet.ServletContext context,
                                    String serviceId)

Gets the StorageService bound to the Servlet context.

Parameters:

context - the Servlet context

serviceId - the ID under which the service bound

Returns:

the service or null if there is no such service bound to the context

getUserSession

public static Session getUserSession(javax.servlet.http.HttpServletRequest httpRequest)

Gets the user session from the request. Retrieving the session in this manner does NOT update the last activity time of the session.

Parameters:

httpRequest - current request

Returns:

the users session, if one exists

unbindLoginContext

public static LoginContext unbindLoginContext(StorageService storageService,
                              javax.servlet.ServletContext context,
                              javax.servlet.http.HttpServletRequest httpRequest,
                              javax.servlet.http.HttpServletResponse httpResponse)

Unbinds a LoginContext from the current request. The unbinding results in the destruction of the associated context key cookie and removes the context from the storage service.

Parameters:

storageService - storage service holding the context

context - the Servlet context

httpRequest - current HTTP request

httpResponse - current HTTP response

Returns:

the login context that was unbound or null if there was no bound context

getServletContextUrl

public static URLBuilder getServletContextUrl(javax.servlet.http.HttpServletRequest httpRequest)

Builds a URL, up to and including the servlet context path. URL does not include a trailing "/".

Parameters:

httpRequest - httpRequest made to the servlet in question

Returns:

URL builder containing the scheme, server name, server port, and context path

getContextRelativeUrl

public static URLBuilder getContextRelativeUrl(javax.servlet.http.HttpServletRequest httpRequest,
                               String path)

Builds a URL to a path that is meant to be relative to the Servlet context.

Parameters:

httpRequest - current HTTP request

path - path relative to the context, may start with a "/"

Returns:

URL builder containing the scheme, server name, server port, and full path