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SEC-29: Remove from sandbox (now in core).

1.0.x
Ben Alex 20 years ago
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d125569bd6
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bff37bc4ce
6 changed files with 0 additions and 1514 deletions
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  1. 310
      sandbox/src/main/java/org/acegisecurity/intercept/web/SandboxSecurityEnforcementFilter.java
  2. 475
      sandbox/src/main/java/org/acegisecurity/wrapper/SandboxSecurityContextHolderAwareRequestWrapper.java
  3. 143
      sandbox/src/main/java/org/acegisecurity/wrapper/redirect/Enumerator.java
  4. 226
      sandbox/src/main/java/org/acegisecurity/wrapper/redirect/FastHttpDateFormat.java
  5. 352
      sandbox/src/main/java/org/acegisecurity/wrapper/redirect/SavedHttpServletRequest.java
  6. 8
      sandbox/src/main/java/org/acegisecurity/wrapper/redirect/package.html

310
sandbox/src/main/java/org/acegisecurity/intercept/web/SandboxSecurityEnforcementFilter.java
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/* Copyright 2004, 2005 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.intercept.web;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.acegisecurity.AccessDeniedException;
import org.acegisecurity.AuthenticationException;
import org.acegisecurity.AuthenticationTrustResolver;
import org.acegisecurity.AuthenticationTrustResolverImpl;
import org.acegisecurity.InsufficientAuthenticationException;
import org.acegisecurity.context.SecurityContextHolder;
import org.acegisecurity.ui.AbstractProcessingFilter;
import org.acegisecurity.ui.AuthenticationEntryPoint;
import org.acegisecurity.ui.ExceptionTranslationFilter;
import org.acegisecurity.util.PortResolver;
import org.acegisecurity.util.PortResolverImpl;
import org.acegisecurity.wrapper.redirect.SavedHttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;
/**
* Wraps requests to the {@link FilterSecurityInterceptor}.
*
* <p>
* This filter is necessary because it provides the bridge between incoming
* requests and the <code>FilterSecurityInterceptor</code> instance.
* </p>
*
* <p>
* If an {@link AuthenticationException} is detected, the filter will launch
* the <code>authenticationEntryPoint</code>. This allows common handling of
* authentication failures originating from any subclass of {@link
* org.acegisecurity.intercept.AbstractSecurityInterceptor}.
* </p>
*
* <p>
* If an {@link AccessDeniedException} is detected, the filter will determine
* whether or not the user is an anonymous user. If they are an anonymous
* user, the <code>authenticationEntryPoint</code> will be launched. If they
* are not an anonymous user, the filter will respond with a
* <code>HttpServletResponse.SC_FORBIDDEN</code> (403 error). In addition,
* the <code>AccessDeniedException</code> itself will be placed in the
* <code>HttpSession</code> attribute keyed against {@link
* #ACEGI_SECURITY_ACCESS_DENIED_EXCEPTION_KEY} (to allow access to the stack
* trace etc). Again, this allows common access denied handling irrespective
* of the originating security interceptor.
* </p>
*
* <p>
* To use this filter, it is necessary to specify the following properties:
* </p>
*
* <ul>
* <li>
* <code>filterSecurityInterceptor</code> indicates the
* <code>FilterSecurityInterceptor</code> to delegate HTTP security decisions
* to.
* </li>
* <li>
* <code>authenticationEntryPoint</code> indicates the handler that should
* commence the authentication process if an
* <code>AuthenticationException</code> is detected. Note that this may also
* switch the current protocol from http to https for an SSL login.
* </li>
* <li>
* <code>portResolver</code> is used to determine the "real" port that a
* request was received on.
* </li>
* </ul>
*
* <P>
* <B>Do not use this class directly.</B> Instead configure
* <code>web.xml</code> to use the {@link
* org.acegisecurity.util.FilterToBeanProxy}.
* </p>
*
* @author Ben Alex
* @author colin sampaleanu
* @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
* @version $Id$
*/
public class SandboxSecurityEnforcementFilter implements Filter, InitializingBean {
private static final Log logger = LogFactory.getLog(ExceptionTranslationFilter.class);
public static final String ACEGI_SECURITY_ACCESS_DENIED_EXCEPTION_KEY = "ACEGI_SECURITY_403_EXCEPTION";
public static final String SAVED_REQUEST_SESSION_ATTRIBUTE = "org.acegisecurity.intercept.web.SAVED_REQUEST_SESSION_ATTRIBUTE";
private AuthenticationEntryPoint authenticationEntryPoint;
private AuthenticationTrustResolver authenticationTrustResolver = new AuthenticationTrustResolverImpl();
private FilterSecurityInterceptor filterSecurityInterceptor;
private PortResolver portResolver = new PortResolverImpl();
private boolean createSessionAllowed = true;
/**
* Sets the AuthenticationEntryPoint.
* @param authenticationEntryPoint The authentication entry point.
*/
public void setAuthenticationEntryPoint(
AuthenticationEntryPoint authenticationEntryPoint) {
this.authenticationEntryPoint = authenticationEntryPoint;
}
/**
* Returns the AuthenticationEntryPoint.
* @return The authentication entry point.
*/
public AuthenticationEntryPoint getAuthenticationEntryPoint() {
return authenticationEntryPoint;
}
/**
* Sets the AuthenticationTrustResolver.
* @param authenticationTrustResolver The AuthenticationTrustResolver.
*/
public void setAuthenticationTrustResolver(
AuthenticationTrustResolver authenticationTrustResolver) {
this.authenticationTrustResolver = authenticationTrustResolver;
}
/**
* If <code>true</code>, indicates that <code>SecurityEnforcementFilter</code> is permitted
* to store the target URL and exception information in the <code>HttpSession</code> (the
* default). In situations where you do not wish to unnecessarily create <code>HttpSession</code>s
* - because the user agent will know the failed URL, such as with BASIC or Digest authentication
* - you may wish to set this property to <code>false</code>. Remember to also set the
* {@link org.acegisecurity.context.HttpSessionContextIntegrationFilter#allowSessionCreation}
* to <code>false</code> if you set this property to <code>false</code>.
*
* @return <code>true</code> if the <code>HttpSession</code> will be used to store information
* about the failed request, <code>false</code> if the <code>HttpSession</code> will not be
* used
*/
public boolean isCreateSessionAllowed() {
return createSessionAllowed;
}
public void setCreateSessionAllowed(boolean createSessionAllowed) {
this.createSessionAllowed = createSessionAllowed;
}
public AuthenticationTrustResolver getAuthenticationTrustResolver() {
return authenticationTrustResolver;
}
public void setFilterSecurityInterceptor(
FilterSecurityInterceptor filterSecurityInterceptor) {
this.filterSecurityInterceptor = filterSecurityInterceptor;
}
public FilterSecurityInterceptor getFilterSecurityInterceptor() {
return filterSecurityInterceptor;
}
public void setPortResolver(PortResolver portResolver) {
this.portResolver = portResolver;
}
public PortResolver getPortResolver() {
return portResolver;
}
public void afterPropertiesSet() throws Exception {
Assert.notNull(authenticationEntryPoint,
"authenticationEntryPoint must be specified");
Assert.notNull(filterSecurityInterceptor,
"filterSecurityInterceptor must be specified");
Assert.notNull(portResolver, "portResolver must be specified");
Assert.notNull(authenticationTrustResolver,
"authenticationTrustResolver must be specified");
}
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
if (!(request instanceof HttpServletRequest)) {
throw new ServletException("HttpServletRequest required");
}
if (!(response instanceof HttpServletResponse)) {
throw new ServletException("HttpServletResponse required");
}
FilterInvocation fi = new FilterInvocation(request, response, chain);
try {
filterSecurityInterceptor.invoke(fi);
if (logger.isDebugEnabled()) {
logger.debug("Chain processed normally");
}
} catch (AuthenticationException authentication) {
if (logger.isDebugEnabled()) {
logger.debug("Authentication exception occurred; redirecting to authentication entry point",
authentication);
}
sendStartAuthentication(fi, authentication);
} catch (AccessDeniedException accessDenied) {
if (authenticationTrustResolver.isAnonymous(
SecurityContextHolder.getContext().getAuthentication())) {
if (logger.isDebugEnabled()) {
logger.debug("Access is denied (user is anonymous); redirecting to authentication entry point",
accessDenied);
}
sendStartAuthentication(fi,
new InsufficientAuthenticationException(
"Full authentication is required to access this resource"));
} else {
if (logger.isDebugEnabled()) {
logger.debug("Access is denied (user is not anonymous); sending back forbidden response",
accessDenied);
}
sendAccessDeniedError(fi, accessDenied);
}
} catch (ServletException e) {
throw e;
} catch (IOException e) {
throw e;
} catch (Throwable otherException) {
throw new ServletException(otherException);
}
}
public void init(FilterConfig filterConfig) throws ServletException {
}
protected void sendAccessDeniedError(FilterInvocation fi,
AccessDeniedException accessDenied)
throws ServletException, IOException {
if (createSessionAllowed) {
((HttpServletRequest) fi.getRequest()).getSession().setAttribute(ACEGI_SECURITY_ACCESS_DENIED_EXCEPTION_KEY,
accessDenied);
}
((HttpServletResponse) fi.getResponse()).sendError(HttpServletResponse.SC_FORBIDDEN,
accessDenied.getMessage()); // 403
}
protected void sendStartAuthentication(FilterInvocation fi,
AuthenticationException reason) throws ServletException, IOException {
// Get the HttpServletRequest
HttpServletRequest request = (HttpServletRequest) fi.getRequest();
// Save this original request on the session in case
// SecurityContextHolderAwareRequestWrapper has to resume it after (re)authentication.
request.getSession().setAttribute(SAVED_REQUEST_SESSION_ATTRIBUTE, SavedHttpServletRequest.saveRequest(request));
int port = portResolver.getServerPort(request);
boolean includePort = true;
if ("http".equals(request.getScheme().toLowerCase()) && (port == 80)) {
includePort = false;
}
if ("https".equals(request.getScheme().toLowerCase()) && (port == 443)) {
includePort = false;
}
// Build the target URL from the request
String targetUrl = request.getScheme() + "://" +
request.getServerName() + ((includePort) ? (":" + port) : "") +
request.getContextPath() + fi.getRequestUrl();
if (logger.isDebugEnabled()) {
logger.debug(
"Authentication entry point being called; target URL added to Session: " +
targetUrl);
}
if (createSessionAllowed) {
((HttpServletRequest) request).getSession().setAttribute(AbstractProcessingFilter.ACEGI_SECURITY_TARGET_URL_KEY,
targetUrl);
}
authenticationEntryPoint.commence(request,
(HttpServletResponse) fi.getResponse(), reason);
}
}

475
sandbox/src/main/java/org/acegisecurity/wrapper/SandboxSecurityContextHolderAwareRequestWrapper.java
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/* Copyright 2004, 2005 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.wrapper;
import java.security.Principal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import javax.servlet.http.HttpSession;
import org.acegisecurity.Authentication;
import org.acegisecurity.AuthenticationTrustResolver;
import org.acegisecurity.AuthenticationTrustResolverImpl;
import org.acegisecurity.GrantedAuthority;
import org.acegisecurity.context.SecurityContextHolder;
import org.acegisecurity.intercept.web.SandboxSecurityEnforcementFilter;
import org.acegisecurity.userdetails.UserDetails;
import org.acegisecurity.wrapper.redirect.Enumerator;
import org.acegisecurity.wrapper.redirect.FastHttpDateFormat;
import org.acegisecurity.wrapper.redirect.SavedHttpServletRequest;
/**
* An Acegi Security-aware <code>HttpServletRequestWrapper</code>, which uses
* the <code>SecurityContext</code>-defined <code>Authentication</code>
* object for
* {@link SecurityContextHolderAwareRequestWrapper#isUserInRole(java.lang.String)}
* and {@link javax.servlet.http.HttpServletRequestWrapper#getRemoteUser()}
* responses.
* <p>
* Provides request parameters, headers, cookies from original requrest or saved request.
* </p>
*
* @author Orlando Garcia Carmona
* @author Ben Alex
* @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
* @version $Id$
*/
public class SandboxSecurityContextHolderAwareRequestWrapper extends
HttpServletRequestWrapper {
// ~ Static fields ========================================================
protected static final TimeZone GMT_ZONE = TimeZone.getTimeZone("GMT");
/**
* The default Locale if none are specified.
*/
protected static Locale defaultLocale = Locale.getDefault();
// ~ Instance fields
// ========================================================
/**
* Authentication trust resolver.
*/
private AuthenticationTrustResolver authenticationTrustResolver = new AuthenticationTrustResolverImpl();
/**
* The set of SimpleDateFormat formats to use in getDateHeader().
*
* Notice that because SimpleDateFormat is not thread-safe, we can't declare
* formats[] as a static variable.
*/
protected SimpleDateFormat formats[] = new SimpleDateFormat[3];
/**
* Saved request (to be resumed after authentication)
*/
protected SavedHttpServletRequest savedRequest = null;
// ~ Constructors
// ===========================================================
/**
* The class' primary constructor.
*
* @param request HttpServletRequest
*/
public SandboxSecurityContextHolderAwareRequestWrapper(HttpServletRequest request) {
// First do what the parent class needs to.
super(request);
// Return if there isn't an existing HttpSession
HttpSession session = request.getSession(false);
if (session != null) {
// We know there's an existing HttpSession, so see if it has a
// saved request (placed there by SecurityEnforcementFilter).
SavedHttpServletRequest saved = (SavedHttpServletRequest) session
.getAttribute(SandboxSecurityEnforcementFilter.SAVED_REQUEST_SESSION_ATTRIBUTE);
if (saved != null) {
// We know there's a saved request, so see if it has a
// saved "root" request URI to forward to.
String requestURI = saved.getRequestURI();
if (requestURI != null) {
// We know there's a saved "root" request URI, so see if
// it's the
// same one specified by this request.
if (requestURI.equals(request.getRequestURI())) {
// They're the same "root" request URIs, so get the
// saved request and remove it from the HttpSession
// since we only want to process it once.
savedRequest = saved;
session
.removeAttribute(SandboxSecurityEnforcementFilter.SAVED_REQUEST_SESSION_ATTRIBUTE);
formats[0] = new SimpleDateFormat(
"EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US);
formats[1] = new SimpleDateFormat(
"EEEEEE, dd-MMM-yy HH:mm:ss zzz", Locale.US);
formats[2] = new SimpleDateFormat(
"EEE MMMM d HH:mm:ss yyyy", Locale.US);
formats[0].setTimeZone(GMT_ZONE);
formats[1].setTimeZone(GMT_ZONE);
formats[2].setTimeZone(GMT_ZONE);
}
}
}
}
return;
}
// ~ Methods
// ================================================================
/**
* Returns the principal's name, as obtained from the
* <code>SecurityContextHolder</code>. Properly handles both
* <code>String</code>-based and <code>UserDetails</code>-based
* principals.
*
* @return the username or <code>null</code> if unavailable
*/
public String getRemoteUser() {
Authentication auth = getAuthentication();
if ((auth == null) || (auth.getPrincipal() == null)) {
return null;
}
if (auth.getPrincipal() instanceof UserDetails) {
return ((UserDetails) auth.getPrincipal()).getUsername();
}
return auth.getPrincipal().toString();
}
/**
* Simple searches for an exactly matching {@link
* GrantedAuthority#getAuthority()}.
*
* <p>
* Will always return <code>false</code> if the
* <code>SecurityContextHolder</code> contains an
* <code>Authentication</code> with
* <code>null</code><code>principal</code> and/or
* <code>GrantedAuthority[]</code> objects.
* </p>
*
* @param role the <code>GrantedAuthority</code><code>String</code> representation to check for.
* @return <code>true</code> if an <b>exact</b> (case sensitive) matching granted authority is located, <code>false</code> otherwise.
*/
public boolean isUserInRole(String role) {
return isGranted(role);
}
/**
* Returns the <code>Authentication</code> (which is a subclass of
* <code>Principal</code>), or <code>null</code> if unavailable.
*
* <p>
* Note: Override this method in order to workaround the problem in Sun Java
* System Application Server 8.1 PE
* </p>
*
* @return the <code>Authentication</code>, or <code>null</code>
*/
public Principal getUserPrincipal() {
Authentication auth = getAuthentication();
if ((auth == null) || (auth.getPrincipal() == null)) {
return null;
}
return auth;
}
/**
* Obtain the current active <code>Authentication</code>
*
* @return the authentication object or <code>null</code>
*/
private Authentication getAuthentication() {
Authentication auth = SecurityContextHolder.getContext()
.getAuthentication();
if (!authenticationTrustResolver.isAnonymous(auth)) {
return auth;
}
return null;
}
/**
* Determines if principal has been granted a given role.
*
* @param role The role being tested.
* @return True if principal has been granted the given role.
*/
private boolean isGranted(String role) {
Authentication auth = getAuthentication();
if ((auth == null) || (auth.getPrincipal() == null)
|| (auth.getAuthorities() == null)) {
return false;
}
for (int i = 0; i < auth.getAuthorities().length; i++) {
if (role.equals(auth.getAuthorities()[i].getAuthority())) {
return true;
}
}
return false;
}
/**
* The default behavior of this method is to return getMethod() on the
* wrapped request object.
*/
public String getMethod() {
if (savedRequest == null) {
return super.getMethod();
} else {
return savedRequest.getMethod();
}
}
/**
* The default behavior of this method is to return getHeader(String name)
* on the wrapped request object.
*/
public String getHeader(String name) {
if (savedRequest == null) {
return super.getHeader(name);
} else {
String header = null;
Iterator iterator = savedRequest.getHeaderValues(name);
while (iterator.hasNext()) {
header = (String) iterator.next();
break;
}
return header;
}
}
/**
* The default behavior of this method is to return getIntHeader(String
* name) on the wrapped request object.
*/
public int getIntHeader(String name) {
if (savedRequest == null) {
return super.getIntHeader(name);
} else {
String value = getHeader(name);
if (value == null) {
return (-1);
} else {
return (Integer.parseInt(value));
}
}
}
/**
* The default behavior of this method is to return getDateHeader(String
* name) on the wrapped request object.
*/
public long getDateHeader(String name) {
if (savedRequest == null) {
return super.getDateHeader(name);
} else {
String value = getHeader(name);
if (value == null)
return (-1L);
// Attempt to convert the date header in a variety of formats
long result = FastHttpDateFormat.parseDate(value, formats);
if (result != (-1L)) {
return result;
}
throw new IllegalArgumentException(value);
}
}
/**
* The default behavior of this method is to return getHeaderNames() on the
* wrapped request object.
*/
public Enumeration getHeaderNames() {
if (savedRequest == null) {
return super.getHeaderNames();
} else {
return new Enumerator(savedRequest.getHeaderNames());
}
}
/**
* The default behavior of this method is to return getHeaders(String name)
* on the wrapped request object.
*/
public Enumeration getHeaders(String name) {
if (savedRequest == null) {
return super.getHeaders(name);
} else {
return new Enumerator(savedRequest.getHeaderValues(name));
}
}
/**
* The default behavior of this method is to return getCookies() on the
* wrapped request object.
*/
public Cookie[] getCookies() {
if (savedRequest == null) {
return super.getCookies();
} else {
List cookies = savedRequest.getCookies();
return (Cookie[]) cookies.toArray(new Cookie[cookies.size()]);
}
}
/**
* The default behavior of this method is to return
* getParameterValues(String name) on the wrapped request object.
*/
public String[] getParameterValues(String name) {
if (savedRequest == null) {
return super.getParameterValues(name);
} else {
return savedRequest.getParameterValues(name);
}
}
/**
* The default behavior of this method is to return getParameterNames() on
* the wrapped request object.
*/
public Enumeration getParameterNames() {
if (savedRequest == null) {
return super.getParameterNames();
} else {
return new Enumerator(savedRequest.getParameterNames());
}
}
/**
* The default behavior of this method is to return getParameterMap() on the
* wrapped request object.
*/
public Map getParameterMap() {
if (savedRequest == null) {
return super.getParameterMap();
} else {
return savedRequest.getParameterMap();
}
}
/**
* The default behavior of this method is to return getParameter(String
* name) on the wrapped request object.
*/
public String getParameter(String name) {
/*
* if (savedRequest == null) { return super.getParameter(name); } else {
* String value = null; String[] values =
* savedRequest.getParameterValues(name); if (values == null) return
* null; for (int i = 0; i < values.length; i++) { value = values[i];
* break; } return value; }
*/
// We do not get value from super.getParameter because
// of a bug in Jetty servlet-container.
String value = null;
String[] values = null;
if (savedRequest == null) {
values = super.getParameterValues(name);
} else {
values = savedRequest.getParameterValues(name);
}
if (values == null)
return null;
for (int i = 0; i < values.length; i++) {
value = values[i];
break;
}
return value;
}
/**
* The default behavior of this method is to return getLocales() on the
* wrapped request object.
*/
public Enumeration getLocales() {
if (savedRequest == null) {
return super.getLocales();
} else {
Iterator iterator = savedRequest.getLocales();
if (iterator.hasNext()) {
return new Enumerator(iterator);
} else {
ArrayList results = new ArrayList();
results.add(defaultLocale);
return new Enumerator(results.iterator());
}
}
}
/**
* The default behavior of this method is to return getLocale() on the
* wrapped request object.
*/
public Locale getLocale() {
if (savedRequest == null) {
return super.getLocale();
} else {
Locale locale = null;
Iterator iterator = savedRequest.getLocales();
while (iterator.hasNext()) {
locale = (Locale) iterator.next();
break;
}
if (locale == null) {
return defaultLocale;
} else {
return locale;
}
}
}
}

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sandbox/src/main/java/org/acegisecurity/wrapper/redirect/Enumerator.java
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/* Copyright 2004, 2005 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.wrapper.redirect;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
/**
* <p>Adapter class that wraps an <code>Enumeration</code> around a Java2
* collection classes object <code>Iterator</code> so that existing APIs
* returning Enumerations can easily run on top of the new collections.
* Constructors are provided to easliy create such wrappers.</p>
* <p>The source code is taken from Apache Tomcat</p>
*
* <p><a href="Enumerator.java.html"><i>View Source</i></a></p>
*
* @author Craig R. McClanahan
* @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
* @version $Revision$ $Date$
*/
public class Enumerator implements Enumeration {
// ----------------------------------------------------------- Constructors
/**
* The <code>Iterator</code> over which the <code>Enumeration</code>
* represented by this class actually operates.
*/
private Iterator iterator = null;
/**
* Return an Enumeration over the values of the specified Collection.
*
* @param collection Collection whose values should be enumerated
*/
public Enumerator(Collection collection) {
this(collection.iterator());
}
/**
* Return an Enumeration over the values of the specified Collection.
*
* @param collection Collection whose values should be enumerated
* @param clone true to clone iterator
*/
public Enumerator(Collection collection, boolean clone) {
this(collection.iterator(), clone);
}
/**
* Return an Enumeration over the values returned by the
* specified Iterator.
*
* @param iterator Iterator to be wrapped
*/
public Enumerator(Iterator iterator) {
super();
this.iterator = iterator;
}
/**
* Return an Enumeration over the values returned by the
* specified Iterator.
*
* @param iterator Iterator to be wrapped
* @param clone true to clone iterator
*/
public Enumerator(Iterator iterator, boolean clone) {
super();
if (!clone) {
this.iterator = iterator;
} else {
List list = new ArrayList();
while (iterator.hasNext()) {
list.add(iterator.next());
}
this.iterator = list.iterator();
}
}
/**
* Return an Enumeration over the values of the specified Map.
*
* @param map Map whose values should be enumerated
*/
public Enumerator(Map map) {
this(map.values().iterator());
}
/**
* Return an Enumeration over the values of the specified Map.
*
* @param map Map whose values should be enumerated
* @param clone true to clone iterator
*/
public Enumerator(Map map, boolean clone) {
this(map.values().iterator(), clone);
}
/**
* Tests if this enumeration contains more elements.
*
* @return <code>true</code> if and only if this enumeration object
* contains at least one more element to provide, <code>false</code>
* otherwise
*/
public boolean hasMoreElements() {
return (iterator.hasNext());
}
/**
* Returns the next element of this enumeration if this enumeration
* has at least one more element to provide.
*
* @return the next element of this enumeration
*
* @exception NoSuchElementException if no more elements exist
*/
public Object nextElement() throws NoSuchElementException {
return (iterator.next());
}
}

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sandbox/src/main/java/org/acegisecurity/wrapper/redirect/FastHttpDateFormat.java
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/* Copyright 2004, 2005 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.wrapper.redirect;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.TimeZone;
/**
* <p>Utility class to generate HTTP dates.</p>
* <p><a href="FastHttpDateFormat.java.html"><i>View Source</i></a></p>
* <p>This source code is taken from Tomcat Apache</p>
*
* @author Remy Maucherat
* @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
* @version $Revision$ $Date$
*/
public class FastHttpDateFormat {
/**
* Current formatted date.
*/
protected static String currentDate = null;
/**
* Instant on which the currentDate object was generated.
*/
protected static long currentDateGenerated = 0L;
/**
* HTTP date format.
*/
protected static final SimpleDateFormat format =
new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US);
/**
* Formatter cache.
*/
protected static final HashMap formatCache = new HashMap();
/**
* The set of SimpleDateFormat formats to use in <code>getDateHeader()</code>.
*/
protected static final SimpleDateFormat formats[] = {
new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US),
new SimpleDateFormat("EEEEEE, dd-MMM-yy HH:mm:ss zzz", Locale.US),
new SimpleDateFormat("EEE MMMM d HH:mm:ss yyyy", Locale.US)
};
/**
* GMT timezone - all HTTP dates are on GMT
*/
protected final static TimeZone gmtZone = TimeZone.getTimeZone("GMT");
/**
* Parser cache.
*/
protected static final HashMap parseCache = new HashMap();
static {
format.setTimeZone(gmtZone);
formats[0].setTimeZone(gmtZone);
formats[1].setTimeZone(gmtZone);
formats[2].setTimeZone(gmtZone);
}
/**
* Formats a specified date to HTTP format. If local format is not
* <code>null</code>, it's used instead.
*
* @param value Date value to format
* @param threadLocalformat The format to use (or <code>null</code> -- then
* HTTP format will be used)
* @return Formatted date
*/
public static final String formatDate(long value,
DateFormat threadLocalformat) {
String cachedDate = null;
Long longValue = new Long(value);
try {
cachedDate = (String) formatCache.get(longValue);
} catch (Exception e) {
}
if (cachedDate != null)
return cachedDate;
String newDate = null;
Date dateValue = new Date(value);
if (threadLocalformat != null) {
newDate = threadLocalformat.format(dateValue);
synchronized (formatCache) {
updateCache(formatCache, longValue, newDate);
}
} else {
synchronized (formatCache) {
newDate = format.format(dateValue);
updateCache(formatCache, longValue, newDate);
}
}
return newDate;
}
/**
* Gets the current date in HTTP format.
*
* @return Current date in HTTP format
*/
public static final String getCurrentDate() {
long now = System.currentTimeMillis();
if ((now - currentDateGenerated) > 1000) {
synchronized (format) {
if ((now - currentDateGenerated) > 1000) {
currentDateGenerated = now;
currentDate = format.format(new Date(now));
}
}
}
return currentDate;
}
/**
* Parses date with given formatters.
*
* @param value The string to parse
* @param formats Array of formats to use
* @return Parsed date (or <code>null</code> if no formatter mached)
*/
private static final Long internalParseDate
(String value, DateFormat[] formats) {
Date date = null;
for (int i = 0; (date == null) && (i < formats.length); i++) {
try {
date = formats[i].parse(value);
} catch (ParseException e) {
;
}
}
if (date == null) {
return null;
}
return new Long(date.getTime());
}
/**
* Tries to parse the given date as an HTTP date. If local format list is not
* <code>null</code>, it's used instead.
*
* @param value The string to parse
* @param threadLocalformats Array of formats to use for parsing.
* If <code>null</code>, HTTP formats are used.
* @return Parsed date (or -1 if error occured)
*/
public static final long parseDate(String value,
DateFormat[] threadLocalformats) {
Long cachedDate = null;
try {
cachedDate = (Long) parseCache.get(value);
} catch (Exception e) {
}
if (cachedDate != null)
return cachedDate.longValue();
Long date = null;
if (threadLocalformats != null) {
date = internalParseDate(value, threadLocalformats);
synchronized (parseCache) {
updateCache(parseCache, value, date);
}
} else {
synchronized (parseCache) {
date = internalParseDate(value, formats);
updateCache(parseCache, value, date);
}
}
if (date == null) {
return (-1L);
} else {
return date.longValue();
}
}
/**
* Updates cache.
*
* @param cache Cache to be updated
* @param key Key to be updated
* @param value New value
*/
private static final void updateCache(HashMap cache, Object key,
Object value) {
if (value == null) {
return;
}
if (cache.size() > 1000) {
cache.clear();
}
cache.put(key, value);
}
}

352
sandbox/src/main/java/org/acegisecurity/wrapper/redirect/SavedHttpServletRequest.java
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/* Copyright 2004, 2005 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.wrapper.redirect;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import org.acegisecurity.ui.ExceptionTranslationFilter;
import org.acegisecurity.wrapper.SecurityContextHolderAwareRequestWrapper;
/**
* <p>
* Object that saves the critical information from a request so that
* HTTP (header and parameter)-based authentication can reproduce it
* once the user has been authenticated.
* <p>
* <b>IMPLEMENTATION NOTE</b> - It is assumed that this object is accessed
* only from the context of a single thread, so no synchronization around
* internal collection classes is performed.
* <p>
* Note that SavedHttpServletRequest doesn't save uploaded file binary data, although
* it does save request parameters so that a POST transaction can be faithfully
* duplicated. On one hand it is unfortunate to lose such type of data, but on
* the other hand we don't store it in session because the data can be very big
* and this solution can overload restricted resources.
* </p>
* <p>The original source code from Apache Tomcat<p>
*
* @see ExceptionTranslationFilter
* @see SecurityContextHolderAwareRequestWrapper
* @author Craig R. McClanahan
* @author Andrey Grebnev <a href="mailto:andrey.grebnev@blandware.com">&lt;andrey.grebnev@blandware.com&gt;</a>
* @version $Revision$ $Date$
*/
public class SavedHttpServletRequest {
/**
* This method provides ability to create SavedHttpServletRequest from HttpServletRequest
* @param request request to be saved
* @return saved request resulting SavedHttpServletRequest
*/
public static SavedHttpServletRequest saveRequest(HttpServletRequest request) {
if (request.getRequestURI() == null)
return null;
// Create and populate a SavedHttpServletRequest object for this request
SavedHttpServletRequest saved = new SavedHttpServletRequest();
Cookie cookies[] = request.getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++)
saved.addCookie(cookies[i]);
}
Enumeration names = request.getHeaderNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Enumeration values = request.getHeaders(name);
while (values.hasMoreElements()) {
String value = (String) values.nextElement();
saved.addHeader(name, value);
}
}
Enumeration locales = request.getLocales();
while (locales.hasMoreElements()) {
Locale locale = (Locale) locales.nextElement();
saved.addLocale(locale);
}
Map parameters = request.getParameterMap();
Iterator paramNames = parameters.keySet().iterator();
while (paramNames.hasNext()) {
String paramName = (String) paramNames.next();
String paramValues[] = (String[]) parameters.get(paramName);
saved.addParameter(paramName, paramValues);
}
saved.setMethod(request.getMethod());
saved.setQueryString(request.getQueryString());
saved.setRequestURI(request.getRequestURI());
// saved.setPathInfo(request.getPathInfo());
return saved;
}
/**
* The set of Cookies associated with this Request.
*/
private ArrayList cookies = new ArrayList();
/**
* The set of Headers associated with this Request. Each key is a header
* name, while the value is a ArrayList containing one or more actual
* values for this header. The values are returned as an Iterator when
* you ask for them.
*/
private HashMap headers = new HashMap();
/**
* The set of Locales associated with this Request.
*/
private ArrayList locales = new ArrayList();
/**
* The request method used on this Request.
*/
private String method = null;
/**
* The set of request parameters associated with this Request. Each
* entry is keyed by the parameter name, pointing at a String array of
* the corresponding values.
*/
private HashMap parameters = new HashMap();
/**
* The request pathInfo associated with this Request.
*/
private String pathInfo = null;
/**
* The query string associated with this Request.
*/
private String queryString = null;
/**
* The request URI associated with this Request.
*/
private String requestURI = null;
/**
* Adds cookie to list of cookies
*
* @param cookie cookie to add
*/
public void addCookie(Cookie cookie) {
cookies.add(cookie);
}
/**
* Adds header
*
* @param name header name
* @param value header value
*/
public void addHeader(String name, String value) {
ArrayList values = (ArrayList) headers.get(name);
if (values == null) {
values = new ArrayList();
headers.put(name, values);
}
values.add(value);
}
/**
* Adds locale
*
* @param locale locale to add
*/
public void addLocale(Locale locale) {
locales.add(locale);
}
/**
* Adds parameter
*
* @param name parameter name
* @param values parameter values
*/
public void addParameter(String name, String values[]) {
parameters.put(name, values);
}
/**
* Returns list of cookies
*
* @return list of cookies
*/
public List getCookies() {
return cookies;
}
/**
* Returns iterator over header names
*
* @return iterator over header names
*/
public Iterator getHeaderNames() {
return (headers.keySet().iterator());
}
/**
* Returns iterator over header values
*
* @param name header name
* @return iterator over header values
*/
public Iterator getHeaderValues(String name) {
ArrayList values = (ArrayList) headers.get(name);
if (values == null)
return ((new ArrayList()).iterator());
else
return (values.iterator());
}
/**
* Returns iterator over locales
*
* @return iterator over locales
*/
public Iterator getLocales() {
return (locales.iterator());
}
/**
* Returns request method
*
* @return request method
*/
public String getMethod() {
return (this.method);
}
/**
* Returns parameters
*
* @return parameters map
*/
public Map getParameterMap() {
return parameters;
}
/**
* Returns iterator over parameter names
*
* @return iterator over parameter names
*/
public Iterator getParameterNames() {
return (parameters.keySet().iterator());
}
/**
* Returns parameter values
*
* @param name parameter name
* @return parameter values
*/
public String[] getParameterValues(String name) {
return ((String[]) parameters.get(name));
}
/**
* Returns path info
*
* @return path info
*/
public String getPathInfo() {
return pathInfo;
}
/**
* Returns query string
*
* @return query string
*/
public String getQueryString() {
return (this.queryString);
}
/**
* Returns request URI
*
* @return request URI
*/
public String getRequestURI() {
return (this.requestURI);
}
/**
* Gets uri with path info and query string
*
* @return uri with path info and query string
*/
public String getRequestURL() {
if (getRequestURI() == null)
return null;
StringBuffer sb = new StringBuffer(getRequestURI());
// if (getPathInfo() != null) {
// sb.append(getPathInfo());
// }
if (getQueryString() != null) {
sb.append('?');
sb.append(getQueryString());
}
return sb.toString();
}
/**
* Sets request method
*
* @param method request method to set
*/
public void setMethod(String method) {
this.method = method;
}
/**
* Sets path info
*
* @param pathInfo path info to set
*/
public void setPathInfo(String pathInfo) {
this.pathInfo = pathInfo;
}
/**
* Sets query string
*
* @param queryString query string to set
*/
public void setQueryString(String queryString) {
this.queryString = queryString;
}
/**
* Sets request URI
*
* @param requestURI request URI to set
*/
public void setRequestURI(String requestURI) {
this.requestURI = requestURI;
}
}

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sandbox/src/main/java/org/acegisecurity/wrapper/redirect/package.html
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<html>
<body>
Redirection helper code for
<code>SecurityContextHolderAwareRequestWrapper</code>
and
<code>SecurityEnforcementFilter</code>.
</body>
</html>
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