Author: violetagg
Date: Wed Oct 28 19:09:46 2015
New Revision: 1711104
URL: http://svn.apache.org/viewvc?rev=1711104&view=rev
Log:
Merged revision 1708957 from tomcat/trunk:
Extract common functionality from CsrfPreventionFilter to
CsrfPreventionFilterBase
Added:
tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilterBase.java
- copied unchanged from r1708957,
tomcat/trunk/java/org/apache/catalina/filters/CsrfPreventionFilterBase.java
Modified:
tomcat/tc8.0.x/trunk/ (props changed)
tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java
Propchange: tomcat/tc8.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Oct 28 19:09:46 2015
@@ -1 +1 @@
-/tomcat/trunk:1636524,1637156,1637176,1637188,1637331,1637684,1637695,1638720-1638725,1639653,1640010,1640083-1640084,1640088,1640275,1640322,1640347,1640361,1640365,1640403,1640410,1640652,1640655-1640658,1640688,1640700-1640883,1640903,1640976,1640978,1641000,1641026,1641038-1641039,1641051-1641052,1641058,1641064,1641300,1641369,1641374,1641380,1641486,1641634,1641656-1641692,1641704,1641707-1641718,1641720-1641722,1641735,1641981,1642233,1642280,1642554,1642564,1642595,1642606,1642668,1642679,1642697,1642699,1642766,1643002,1643045,1643054-1643055,1643066,1643121,1643128,1643206,1643209-1643210,1643216,1643249,1643270,1643283,1643309-1643310,1643323,1643365-1643366,1643370-1643371,1643465,1643474,1643536,1643570,1643634,1643649,1643651,1643654,1643675,1643731,1643733-1643734,1643761,1643766,1643814,1643937,1643963,1644017,1644169,1644201-1644203,1644321,1644323,1644516,1644523,1644529,1644535,1644730,1644768,1644784-1644785,1644790,1644793,1644815,1644884,1644886,1644890,1644892
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+/tomcat/trunk:1636524,1637156,1637176,1637188,1637331,1637684,1637695,1638720-1638725,1639653,1640010,1640083-1640084,1640088,1640275,1640322,1640347,1640361,1640365,1640403,1640410,1640652,1640655-1640658,1640688,1640700-1640883,1640903,1640976,1640978,1641000,1641026,1641038-1641039,1641051-1641052,1641058,1641064,1641300,1641369,1641374,1641380,1641486,1641634,1641656-1641692,1641704,1641707-1641718,1641720-1641722,1641735,1641981,1642233,1642280,1642554,1642564,1642595,1642606,1642668,1642679,1642697,1642699,1642766,1643002,1643045,1643054-1643055,1643066,1643121,1643128,1643206,1643209-1643210,1643216,1643249,1643270,1643283,1643309-1643310,1643323,1643365-1643366,1643370-1643371,1643465,1643474,1643536,1643570,1643634,1643649,1643651,1643654,1643675,1643731,1643733-1643734,1643761,1643766,1643814,1643937,1643963,1644017,1644169,1644201-1644203,1644321,1644323,1644516,1644523,1644529,1644535,1644730,1644768,1644784-1644785,1644790,1644793,1644815,1644884,1644886,1644890,1644892
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Modified:
tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java?rev=1711104&r1=1711103&r2=1711104&view=diff
==============================================================================
---
tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java
(original)
+++
tomcat/tc8.0.x/trunk/java/org/apache/catalina/filters/CsrfPreventionFilter.java
Wed Oct 28 19:09:46 2015
@@ -18,15 +18,12 @@ package org.apache.catalina.filters;
import java.io.IOException;
import java.io.Serializable;
-import java.security.SecureRandom;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
-import java.util.Random;
import java.util.Set;
import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
@@ -35,9 +32,6 @@ import javax.servlet.http.HttpServletRes
import javax.servlet.http.HttpServletResponseWrapper;
import javax.servlet.http.HttpSession;
-import org.apache.juli.logging.Log;
-import org.apache.juli.logging.LogFactory;
-
/**
* Provides basic CSRF protection for a web application. The filter assumes
* that:
@@ -48,44 +42,12 @@ import org.apache.juli.logging.LogFactor
* returned to the client
* </ul>
*/
-public class CsrfPreventionFilter extends FilterBase {
-
- private static final Log log =
- LogFactory.getLog(CsrfPreventionFilter.class);
-
- private String randomClass = SecureRandom.class.getName();
-
- private Random randomSource;
-
- private int denyStatus = HttpServletResponse.SC_FORBIDDEN;
+public class CsrfPreventionFilter extends CsrfPreventionFilterBase {
private final Set<String> entryPoints = new HashSet<>();
private int nonceCacheSize = 5;
- @Override
- protected Log getLogger() {
- return log;
- }
-
- /**
- * Return response status code that is used to reject denied request.
- */
- public int getDenyStatus() {
- return denyStatus;
- }
-
- /**
- * Set response status code that is used to reject denied request. If none
- * set, the default value of 403 will be used.
- *
- * @param denyStatus
- * HTTP status code
- */
- public void setDenyStatus(int denyStatus) {
- this.denyStatus = denyStatus;
- }
-
/**
* Entry points are URLs that will not be tested for the presence of a
valid
* nonce. They are used to provide a way to navigate back to a protected
@@ -116,39 +78,6 @@ public class CsrfPreventionFilter extend
this.nonceCacheSize = nonceCacheSize;
}
- /**
- * Specify the class to use to generate the nonces. Must be in instance of
- * {@link Random}.
- *
- * @param randomClass The name of the class to use
- */
- public void setRandomClass(String randomClass) {
- this.randomClass = randomClass;
- }
-
- @Override
- public void init(FilterConfig filterConfig) throws ServletException {
- // Set the parameters
- super.init(filterConfig);
-
- try {
- Class<?> clazz = Class.forName(randomClass);
- randomSource = (Random) clazz.newInstance();
- } catch (ClassNotFoundException e) {
- ServletException se = new ServletException(sm.getString(
- "csrfPrevention.invalidRandomClass", randomClass), e);
- throw se;
- } catch (InstantiationException e) {
- ServletException se = new ServletException(sm.getString(
- "csrfPrevention.invalidRandomClass", randomClass), e);
- throw se;
- } catch (IllegalAccessException e) {
- ServletException se = new ServletException(sm.getString(
- "csrfPrevention.invalidRandomClass", randomClass), e);
- throw se;
- }
- }
-
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
@@ -187,7 +116,7 @@ public class CsrfPreventionFilter extend
if (nonceCache == null || previousNonce == null ||
!nonceCache.contains(previousNonce)) {
- res.sendError(denyStatus);
+ res.sendError(getDenyStatus());
return;
}
}
@@ -214,44 +143,6 @@ public class CsrfPreventionFilter extend
}
- @Override
- protected boolean isConfigProblemFatal() {
- return true;
- }
-
-
- /**
- * Generate a once time token (nonce) for authenticating subsequent
- * requests. This will also add the token to the session. The nonce
- * generation is a simplified version of ManagerBase.generateSessionId().
- *
- */
- protected String generateNonce() {
- byte random[] = new byte[16];
-
- // Render the result as a String of hexadecimal digits
- StringBuilder buffer = new StringBuilder();
-
- randomSource.nextBytes(random);
-
- for (int j = 0; j < random.length; j++) {
- byte b1 = (byte) ((random[j] & 0xf0) >> 4);
- byte b2 = (byte) (random[j] & 0x0f);
- if (b1 < 10) {
- buffer.append((char) ('0' + b1));
- } else {
- buffer.append((char) ('A' + (b1 - 10)));
- }
- if (b2 < 10) {
- buffer.append((char) ('0' + b2));
- } else {
- buffer.append((char) ('A' + (b2 - 10)));
- }
- }
-
- return buffer.toString();
- }
-
protected static class CsrfResponseWrapper
extends HttpServletResponseWrapper {
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