Author: markt
Date: Wed Sep 21 13:27:10 2016
New Revision: 1761727
URL: http://svn.apache.org/viewvc?rev=1761727&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=60013
Refactor the previous fix to align the behaviour of the Rewrite Valve with
mod_rewite. As part of this, provide an implementation for the B and NE flags
and improve the handling for the QSA flag.
Includes multiple test cases by Santhana Preethiand a patch by Tiago Oliveira.
Modified:
tomcat/tc8.5.x/trunk/ (props changed)
tomcat/tc8.5.x/trunk/build.xml
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Resolver.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/ResolverImpl.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteRule.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteValve.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Substitution.java
tomcat/tc8.5.x/trunk/test/org/apache/catalina/valves/rewrite/TestRewriteValve.java
tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml
Propchange: tomcat/tc8.5.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Sep 21 13:27:10 2016
@@ -1 +1 @@
-/tomcat/trunk:1734785,1734799,1734845,1734928,1735041,1735044,1735480,1735577,1735597,1735599-1735600,1735615,1736145,1736162,1736209,1736280,1736297,1736299,1736489,1736646,1736703,1736836,1736849,1737104-1737105,1737112,1737117,1737119-1737120,1737155,1737157,1737192,1737280,1737339,1737632,1737664,1737715,1737748,1737785,1737834,1737860,1737903,1737959,1738005,1738007,1738014-1738015,1738018,1738022,1738039,1738043,1738059-1738060,1738147,1738149,1738174-1738175,1738261,1738589,1738623-1738625,1738643,1738816,1738850,1738855,1738946-1738948,1738953-1738954,1738979,1738982,1739079-1739081,1739087,1739113,1739153,1739172,1739176,1739191,1739474,1739726,1739762,1739775,1739814,1739817-1739818,1739975,1740131,1740324,1740465,1740495,1740508-1740509,1740520,1740535,1740707,1740803,1740810,1740969,1740980,1740991,1740997,1741015,1741033,1741036,1741058,1741060,1741080,1741147,1741159,1741164,1741173,1741181,1741190,1741197,1741202,1741208,1741213,1741221,1741225,1741232,1741409,1741501
,1741677,1741892,1741896,1741984,1742023,1742042,1742071,1742090,1742093,1742101,1742105,1742111,1742139,1742146,1742148,1742166,1742181,1742184,1742187,1742246,1742248-1742251,1742263-1742264,1742268,1742276,1742369,1742387,1742448,1742509-1742512,1742917,1742919,1742933,1742975-1742976,1742984,1742986,1743019,1743115,1743117,1743124-1743125,1743134,1743425,1743554,1743679,1743696-1743698,1743700-1743701,1744058,1744064-1744065,1744125,1744194,1744229,1744270,1744323,1744432,1744684,1744697,1744705,1744713,1744760,1744786,1745083,1745142-1745143,1745145,1745177,1745179-1745180,1745227,1745248,1745254,1745337,1745467,1745473,1745576,1745735,1745744,1746304,1746306-1746307,1746319,1746327,1746338,1746340-1746341,1746344,1746427,1746441,1746473,1746490,1746492,1746495-1746496,1746499-1746501,1746503-1746507,1746509,1746549,1746551,1746554,1746556,1746558,1746584,1746620,1746649,1746724,1746939,1746989,1747014,1747028,1747035,1747210,1747225,1747234,1747253,1747404,1747506,1747536,1747
924,1747980,1747993,1748001,1748253,1748452,1748547,1748629,1748676,1748715,1749287,1749296,1749328,1749373,1749465,1749506,1749508,1749665-1749666,1749763,1749865-1749866,1749898,1749978,1749980,1750011,1750015,1750056,1750480,1750617,1750634,1750692,1750697,1750700,1750703,1750707,1750714,1750718,1750723,1750774,1750899,1750975,1750995,1751061,1751097,1751173,1751438,1751447,1751463,1751702,1752212,1752737,1752745,1753078,1753080,1753358,1753363,1754111,1754140-1754141,1754281,1754310,1754445,1754467,1754494,1754496,1754528,1754532-1754533,1754613,1754714,1754874,1754941,1754944,1754950-1754951,1755005,1755007,1755009,1755132,1755180-1755181,1755185,1755190,1755204-1755206,1755208,1755214,1755224,1755227,1755230,1755629,1755646-1755647,1755650,1755653,1755675,1755680,1755683,1755693,1755717,1755731-1755737,1755812,1755828,1755884,1755890,1755918-1755919,1755942,1755958,1755960,1755970,1755993,1756013,1756019,1756039,1756056,1756083-1756114,1756175,1756288-1756289,1756408-1756410,1
756778,1756798,1756878,1756898,1756939,1757123-1757124,1757126,1757128,1757132-1757133,1757136,1757145,1757167-1757168,1757175,1757180,1757182,1757195,1757271,1757278,1757347,1757353-1757354,1757363,1757374,1757399,1757406,1757408,1757485,1757495,1757499,1757527,1757578,1757684,1757722,1757727,1757853,1757903,1757997,1758072-1758075,1758078-1758079,1758292,1758369,1758423,1758425-1758427,1758430,1758459,1758483,1758486-1758487,1758499,1758525,1758556,1758582,1758584,1758588,1758842,1759019,1759212,1759224,1759227,1759252,1759274,1759611,1760005,1760300,1760446,1760454,1760640,1760648,1761422,1761550,1761553,1761572,1761574,1761628,1761682
+/tomcat/trunk:1734785,1734799,1734845,1734928,1735041,1735044,1735480,1735577,1735597,1735599-1735600,1735615,1736145,1736162,1736209,1736280,1736297,1736299,1736489,1736646,1736703,1736836,1736849,1737104-1737105,1737112,1737117,1737119-1737120,1737155,1737157,1737192,1737280,1737339,1737632,1737664,1737715,1737748,1737785,1737834,1737860,1737903,1737959,1738005,1738007,1738014-1738015,1738018,1738022,1738039,1738043,1738059-1738060,1738147,1738149,1738174-1738175,1738261,1738589,1738623-1738625,1738643,1738816,1738850,1738855,1738946-1738948,1738953-1738954,1738979,1738982,1739079-1739081,1739087,1739113,1739153,1739172,1739176,1739191,1739474,1739726,1739762,1739775,1739814,1739817-1739818,1739975,1740131,1740324,1740465,1740495,1740508-1740509,1740520,1740535,1740707,1740803,1740810,1740969,1740980,1740991,1740997,1741015,1741033,1741036,1741058,1741060,1741080,1741147,1741159,1741164,1741173,1741181,1741190,1741197,1741202,1741208,1741213,1741221,1741225,1741232,1741409,1741501
,1741677,1741892,1741896,1741984,1742023,1742042,1742071,1742090,1742093,1742101,1742105,1742111,1742139,1742146,1742148,1742166,1742181,1742184,1742187,1742246,1742248-1742251,1742263-1742264,1742268,1742276,1742369,1742387,1742448,1742509-1742512,1742917,1742919,1742933,1742975-1742976,1742984,1742986,1743019,1743115,1743117,1743124-1743125,1743134,1743425,1743554,1743679,1743696-1743698,1743700-1743701,1744058,1744064-1744065,1744125,1744194,1744229,1744270,1744323,1744432,1744684,1744697,1744705,1744713,1744760,1744786,1745083,1745142-1745143,1745145,1745177,1745179-1745180,1745227,1745248,1745254,1745337,1745467,1745473,1745576,1745735,1745744,1746304,1746306-1746307,1746319,1746327,1746338,1746340-1746341,1746344,1746427,1746441,1746473,1746490,1746492,1746495-1746496,1746499-1746501,1746503-1746507,1746509,1746549,1746551,1746554,1746556,1746558,1746584,1746620,1746649,1746724,1746939,1746989,1747014,1747028,1747035,1747210,1747225,1747234,1747253,1747404,1747506,1747536,1747
924,1747980,1747993,1748001,1748253,1748452,1748547,1748629,1748676,1748715,1749287,1749296,1749328,1749373,1749465,1749506,1749508,1749665-1749666,1749763,1749865-1749866,1749898,1749978,1749980,1750011,1750015,1750056,1750480,1750617,1750634,1750692,1750697,1750700,1750703,1750707,1750714,1750718,1750723,1750774,1750899,1750975,1750995,1751061,1751097,1751173,1751438,1751447,1751463,1751702,1752212,1752737,1752745,1753078,1753080,1753358,1753363,1754111,1754140-1754141,1754281,1754310,1754445,1754467,1754494,1754496,1754528,1754532-1754533,1754613,1754714,1754874,1754941,1754944,1754950-1754951,1755005,1755007,1755009,1755132,1755180-1755181,1755185,1755190,1755204-1755206,1755208,1755214,1755224,1755227,1755230,1755629,1755646-1755647,1755650,1755653,1755675,1755680,1755683,1755693,1755717,1755731-1755737,1755812,1755828,1755884,1755890,1755918-1755919,1755942,1755958,1755960,1755970,1755993,1756013,1756019,1756039,1756056,1756083-1756114,1756175,1756288-1756289,1756408-1756410,1
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Modified: tomcat/tc8.5.x/trunk/build.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/build.xml?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/build.xml (original)
+++ tomcat/tc8.5.x/trunk/build.xml Wed Sep 21 13:27:10 2016
@@ -1414,6 +1414,7 @@
threads="${test.threads}" >
<jvmarg value="${test.jvmarg.egd}"/>
+ <jvmarg value="-Dfile.encoding=UTF-8"/>
<jvmarg value="-Djava.library.path=${test.apr.loc}"/>
<jvmarg value="${test.formatter}"/>
<jvmarg
value="-Djava.net.preferIPv4Stack=${java.net.preferIPv4Stack}"/>
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Resolver.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Resolver.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Resolver.java
(original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Resolver.java
Wed Sep 21 13:27:10 2016
@@ -33,4 +33,6 @@ public abstract class Resolver {
public abstract String resolveHttp(String key);
public abstract boolean resolveResource(int type, String name);
+
+ public abstract String getUriEncoding();
}
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/ResolverImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/ResolverImpl.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
---
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/ResolverImpl.java
(original)
+++
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/ResolverImpl.java
Wed Sep 21 13:27:10 2016
@@ -177,4 +177,9 @@ public class ResolverImpl extends Resolv
return value;
}
}
+
+ @Override
+ public String getUriEncoding() {
+ return request.getConnector().getURIEncoding();
+ }
}
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteRule.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteRule.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
---
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteRule.java
(original)
+++
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteRule.java
Wed Sep 21 13:27:10 2016
@@ -37,6 +37,7 @@ public class RewriteRule {
substitution = new Substitution();
substitution.setSub(substitutionString);
substitution.parse(maps);
+ substitution.setEscapeBackReferences(isEscapeBackReferences());
}
// Parse the pattern
int flags = 0;
@@ -151,6 +152,8 @@ public class RewriteRule {
}
+ private boolean escapeBackReferences = false;
+
/**
* This flag chains the current rule with the next rule (which itself
* can be chained with the following rule, etc.). This has the following
@@ -325,6 +328,13 @@ public class RewriteRule {
*/
protected boolean type = false;
protected String typeValue = null;
+
+ public boolean isEscapeBackReferences() {
+ return escapeBackReferences;
+ }
+ public void setEscapeBackReferences(boolean escapeBackReferences) {
+ this.escapeBackReferences = escapeBackReferences;
+ }
public boolean isChain() {
return chain;
}
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteValve.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteValve.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
---
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteValve.java
(original)
+++
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/RewriteValve.java
Wed Sep 21 13:27:10 2016
@@ -23,6 +23,7 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringReader;
+import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Hashtable;
@@ -53,12 +54,42 @@ import org.apache.tomcat.util.http.Reque
public class RewriteValve extends ValveBase {
- private static final URLEncoder QUERY_STRING_ENCODER;
-
+ static URLEncoder ENCODER = new URLEncoder();
static {
- QUERY_STRING_ENCODER = new URLEncoder();
- QUERY_STRING_ENCODER.addSafeCharacter('=');
- QUERY_STRING_ENCODER.addSafeCharacter('&');
+ /*
+ * Replicates httpd's encoding
+ * Primarily aimed at encoding URI paths, so from the spec:
+ *
+ * pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
+ *
+ * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
+ *
+ * sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
+ * / "*" / "+" / "," / ";" / "="
+ */
+ // ALPHA and DIGIT are always treated as safe characters
+ // Add the remaining unreserved characters
+ ENCODER.addSafeCharacter('-');
+ ENCODER.addSafeCharacter('.');
+ ENCODER.addSafeCharacter('_');
+ ENCODER.addSafeCharacter('~');
+ // Add the sub-delims
+ ENCODER.addSafeCharacter('!');
+ ENCODER.addSafeCharacter('$');
+ ENCODER.addSafeCharacter('&');
+ ENCODER.addSafeCharacter('\'');
+ ENCODER.addSafeCharacter('(');
+ ENCODER.addSafeCharacter(')');
+ ENCODER.addSafeCharacter('*');
+ ENCODER.addSafeCharacter('+');
+ ENCODER.addSafeCharacter(',');
+ ENCODER.addSafeCharacter(';');
+ ENCODER.addSafeCharacter('=');
+ // Add the remaining literals
+ ENCODER.addSafeCharacter(':');
+ ENCODER.addSafeCharacter('@');
+ // Add '/' so it isn't encoded when we encode a path
+ ENCODER.addSafeCharacter('/');
}
@@ -292,15 +323,19 @@ public class RewriteValve extends ValveB
// As long as MB isn't a char sequence or affiliated, this has to
be
// converted to a string
- MessageBytes urlMB = context ? request.getRequestPathMB() :
request.getDecodedRequestURIMB();
+ String uriEncoding = request.getConnector().getURIEncoding();
+ String originalQueryStringEncoded = request.getQueryString();
+ MessageBytes urlMB =
+ context ? request.getRequestPathMB() :
request.getDecodedRequestURIMB();
urlMB.toChars();
- CharSequence url = urlMB.getCharChunk();
+ CharSequence urlDecoded = urlMB.getCharChunk();
CharSequence host = request.getServerName();
boolean rewritten = false;
boolean done = false;
+ boolean qsa = false;
for (int i = 0; i < rules.length; i++) {
RewriteRule rule = rules[i];
- CharSequence test = (rule.isHost()) ? host : url;
+ CharSequence test = (rule.isHost()) ? host : urlDecoded;
CharSequence newtest = rule.evaluate(test, resolver);
if (newtest != null && !test.equals(newtest.toString())) {
if (container.getLogger().isDebugEnabled()) {
@@ -310,11 +345,18 @@ public class RewriteValve extends ValveB
if (rule.isHost()) {
host = newtest;
} else {
- url = newtest;
+ urlDecoded = newtest;
}
rewritten = true;
}
+ // Check QSA before the final reply
+ if (!qsa && newtest != null && rule.isQsappend()) {
+ // TODO: This logic will need some tweaks if we add QSD
+ // support
+ qsa = true;
+ }
+
// Final reply
// - forbidden
@@ -329,49 +371,66 @@ public class RewriteValve extends ValveB
done = true;
break;
}
+
// - redirect (code)
if (rule.isRedirect() && newtest != null) {
- // append the query string to the url if there is one and
it hasn't been rewritten
- String originalQueryString = request.getQueryString();
- StringBuffer urlString = new StringBuffer(url);
- int index = urlString.indexOf("?");
- String encodedUrl;
+ // Append the query string to the url if there is one and
it
+ // hasn't been rewritten
+ String urlStringDecoded = urlDecoded.toString();
+ int index = urlStringDecoded.indexOf("?");
+ String rewrittenQueryStringDecoded;
if (index == -1) {
- encodedUrl =
URLEncoder.DEFAULT.encode(urlString.toString(), "UTF-8");
- urlString.setLength(0);
- urlString.append(encodedUrl);
+ rewrittenQueryStringDecoded = null;
} else {
- encodedUrl = URLEncoder.DEFAULT.encode(
- urlString.substring(0, index), "UTF-8");
- urlString.delete(0, index);
- urlString.insert(0, encodedUrl);
- }
- if (originalQueryString != null &&
originalQueryString.length() > 0) {
- if (index != -1) {
- // if qsa is specified append the query
- if (rule.isQsappend()) {
- urlString.append('&');
- urlString.append(originalQueryString);
- }
- // if the ? is the last character delete it, its
only purpose was to
- // prevent the rewrite module from appending the
query string
- else if (index == urlString.length() - 1) {
- urlString.deleteCharAt(index);
- }
+ rewrittenQueryStringDecoded =
urlStringDecoded.substring(index + 1);
+ urlStringDecoded = urlStringDecoded.substring(0,
index);
+ }
+
+ StringBuffer urlStringEncoded =
+ new StringBuffer(ENCODER.encode(urlStringDecoded,
uriEncoding));
+ if (originalQueryStringEncoded != null &&
+ originalQueryStringEncoded.length() > 0) {
+ if (rewrittenQueryStringDecoded == null) {
+ urlStringEncoded.append('?');
+
urlStringEncoded.append(originalQueryStringEncoded);
} else {
- urlString.append('?');
- urlString.append(originalQueryString);
+ if (qsa) {
+ // if qsa is specified append the query
+ urlStringEncoded.append('?');
+ urlStringEncoded.append(
+
ENCODER.encode(rewrittenQueryStringDecoded, uriEncoding));
+ urlStringEncoded.append('&');
+
urlStringEncoded.append(originalQueryStringEncoded);
+ } else if (index == urlStringEncoded.length() - 1)
{
+ // if the ? is the last character delete it,
its only purpose was to
+ // prevent the rewrite module from appending
the query string
+ urlStringEncoded.deleteCharAt(index);
+ } else {
+ urlStringEncoded.append('?');
+ urlStringEncoded.append(
+
ENCODER.encode(rewrittenQueryStringDecoded, uriEncoding));
+ }
}
+ } else if (rewrittenQueryStringDecoded != null) {
+ urlStringEncoded.append('?');
+ urlStringEncoded.append(
+ ENCODER.encode(rewrittenQueryStringDecoded,
uriEncoding));
}
// Insert the context if
// 1. this valve is associated with a context
// 2. the url starts with a leading slash
// 3. the url isn't absolute
- if (context && urlString.charAt(0) == '/' &&
!UriUtil.hasScheme(urlString)) {
- urlString.insert(0,
request.getContext().getEncodedPath());
+ if (context && urlStringEncoded.charAt(0) == '/' &&
+ !UriUtil.hasScheme(urlStringEncoded)) {
+ urlStringEncoded.insert(0,
request.getContext().getEncodedPath());
+ }
+ if (rule.isNoescape()) {
+ response.sendRedirect(
+ URLDecoder.decode(urlStringEncoded.toString(),
uriEncoding));
+ } else {
+ response.sendRedirect(urlStringEncoded.toString());
}
- response.sendRedirect(urlString.toString());
response.setStatus(rule.getRedirectCode());
done = true;
break;
@@ -401,14 +460,6 @@ public class RewriteValve extends ValveB
if (rule.isType() && newtest != null) {
request.setContentType(rule.getTypeValue());
}
- // - qsappend
- if (rule.isQsappend() && newtest != null) {
- String queryString = request.getQueryString();
- String urlString = url.toString();
- if (urlString.indexOf('?') != -1 && queryString != null) {
- url = urlString + "&" + queryString;
- }
- }
// Control flow processing
@@ -441,45 +492,54 @@ public class RewriteValve extends ValveB
if (rewritten) {
if (!done) {
// See if we need to replace the query string
- String urlString = url.toString();
- String queryString = null;
- int queryIndex = urlString.indexOf('?');
+ String urlStringDecoded = urlDecoded.toString();
+ String queryStringDecoded = null;
+ int queryIndex = urlStringDecoded.indexOf('?');
if (queryIndex != -1) {
- queryString = urlString.substring(queryIndex+1);
- urlString = urlString.substring(0, queryIndex);
+ queryStringDecoded =
urlStringDecoded.substring(queryIndex+1);
+ urlStringDecoded = urlStringDecoded.substring(0,
queryIndex);
}
- // Set the new 'original' URI
+ // Save the current context path before re-writing starts
String contextPath = null;
if (context) {
contextPath = request.getContextPath();
}
+ // Populated the encoded (i.e. undecoded) requestURI
request.getCoyoteRequest().requestURI().setString(null);
CharChunk chunk =
request.getCoyoteRequest().requestURI().getCharChunk();
chunk.recycle();
if (context) {
+ // This is neither decoded nor normalized
chunk.append(contextPath);
}
- chunk.append(URLEncoder.DEFAULT.encode(urlString,
"UTF-8"));
+ chunk.append(ENCODER.encode(urlStringDecoded,
uriEncoding));
request.getCoyoteRequest().requestURI().toChars();
// Decoded and normalized URI
+ // Rewriting may have denormalized the URL
+ urlStringDecoded = RequestUtil.normalize(urlStringDecoded);
request.getCoyoteRequest().decodedURI().setString(null);
chunk =
request.getCoyoteRequest().decodedURI().getCharChunk();
chunk.recycle();
if (context) {
- chunk.append(contextPath);
+ // This is decoded and normalized
+
chunk.append(request.getServletContext().getContextPath());
}
- chunk.append(RequestUtil.normalize(urlString));
+ chunk.append(urlStringDecoded);
request.getCoyoteRequest().decodedURI().toChars();
// Set the new Query if there is one
- if (queryString != null) {
- // TODO: This isn't perfect. There are some edge cases
- // that can only be handled if RewriteValve works
- // with the original (undecoded) URI
+ if (queryStringDecoded != null) {
request.getCoyoteRequest().queryString().setString(null);
chunk =
request.getCoyoteRequest().queryString().getCharChunk();
chunk.recycle();
- chunk.append(QUERY_STRING_ENCODER.encode(queryString,
"UTF-8"));
- request.getCoyoteRequest().queryString().toChars();
+ chunk.append(ENCODER.encode(queryStringDecoded,
uriEncoding));
+ if (qsa && originalQueryStringEncoded != null &&
+ originalQueryStringEncoded.length() > 0) {
+ chunk.append('&');
+ chunk.append(originalQueryStringEncoded);
+ }
+ if (!chunk.isNull()) {
+ request.getCoyoteRequest().queryString().toChars();
+ }
}
// Set the new host if it changed
if (!host.equals(request.getServerName())) {
@@ -663,7 +723,9 @@ public class RewriteValve extends ValveB
* @param flag The flag
*/
protected static void parseRuleFlag(String line, RewriteRule rule, String
flag) {
- if (flag.equals("chain") || flag.equals("C")) {
+ if (flag.equals("B")) {
+ rule.setEscapeBackReferences(true);
+ } else if (flag.equals("chain") || flag.equals("C")) {
rule.setChain(true);
} else if (flag.startsWith("cookie=") || flag.startsWith("CO=")) {
rule.setCookie(true);
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Substitution.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Substitution.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
---
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Substitution.java
(original)
+++
tomcat/tc8.5.x/trunk/java/org/apache/catalina/valves/rewrite/Substitution.java
Wed Sep 21 13:27:10 2016
@@ -40,7 +40,15 @@ public class Substitution {
public int n;
@Override
public String evaluate(Matcher rule, Matcher cond, Resolver resolver) {
- return rule.group(n);
+ if (escapeBackReferences) {
+ // Note: This should be consistent with the way httpd behaves.
+ // We might want to consider providing a dedicated
decoder
+ // with an option to add additional safe characters to
+ // provide users with more flexibility
+ return RewriteValve.ENCODER.encode(rule.group(n),
resolver.getUriEncoding());
+ } else {
+ return rule.group(n);
+ }
}
}
@@ -105,6 +113,11 @@ public class Substitution {
public String getSub() { return sub; }
public void setSub(String sub) { this.sub = sub; }
+ private boolean escapeBackReferences;
+ void setEscapeBackReferences(boolean escapeBackReferences) {
+ this.escapeBackReferences = escapeBackReferences;
+ }
+
public void parse(Map<String, RewriteMap> maps) {
ArrayList<SubstitutionElement> elements = new ArrayList<>();
Modified:
tomcat/tc8.5.x/trunk/test/org/apache/catalina/valves/rewrite/TestRewriteValve.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/test/org/apache/catalina/valves/rewrite/TestRewriteValve.java?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
---
tomcat/tc8.5.x/trunk/test/org/apache/catalina/valves/rewrite/TestRewriteValve.java
(original)
+++
tomcat/tc8.5.x/trunk/test/org/apache/catalina/valves/rewrite/TestRewriteValve.java
Wed Sep 21 13:27:10 2016
@@ -27,6 +27,15 @@ import org.apache.catalina.startup.Tomca
import org.apache.catalina.startup.TomcatBaseTest;
import org.apache.tomcat.util.buf.ByteChunk;
+/*
+ * Implementation note:
+ *
+ * A number of these tests involve the rewrite valve returning a HTTP Location
+ * header that include un-encoded UTF-8 bytes. How the HTTP client handles
these
+ * depends on the default character encoding configured for the JVM running the
+ * test. The tests expect the client to be configured with UTF-8 as the default
+ * encoding. Use of any other encoding is likely to lead to test failures.
+ */
public class TestRewriteValve extends TomcatBaseTest {
@Test
@@ -75,13 +84,15 @@ public class TestRewriteValve extends To
@Test
public void testRewriteEnvVarAndServerVar() throws Exception {
System.setProperty("some_variable", "something");
- doTestRewrite("RewriteRule /b/(.*).html$
/c/%{ENV:some_variable}%{SERVLET_PATH}", "/b/x.html", "/c/something/b/x.html");
+ doTestRewrite("RewriteRule /b/(.*).html$
/c/%{ENV:some_variable}%{SERVLET_PATH}",
+ "/b/x.html", "/c/something/b/x.html");
}
@Test
public void testRewriteServerVarAndEnvVar() throws Exception {
System.setProperty("some_variable", "something");
- doTestRewrite("RewriteRule /b/(.*).html$
/c%{SERVLET_PATH}/%{ENV:some_variable}", "/b/x.html", "/c/b/x.html/something");
+ doTestRewrite("RewriteRule /b/(.*).html$
/c%{SERVLET_PATH}/%{ENV:some_variable}",
+ "/b/x.html", "/c/b/x.html/something");
}
@Test
@@ -90,7 +101,7 @@ public class TestRewriteValve extends To
doTestRewrite("RewriteRule /b/(.*).html$ /c%_{SERVLET_PATH}",
"/b/x.html", "/c");
Assert.fail("IAE expected.");
} catch (java.lang.IllegalArgumentException e) {
- // excpected as %_{ is invalid
+ // expected as %_{ is invalid
}
}
@@ -100,7 +111,7 @@ public class TestRewriteValve extends To
doTestRewrite("RewriteRule /b/(.*).html$ /c$_{SERVLET_PATH}",
"/b/x.html", "/c");
Assert.fail("IAE expected.");
} catch (java.lang.IllegalArgumentException e) {
- // excpected as $_{ is invalid
+ // expected as $_{ is invalid
}
}
@@ -129,19 +140,329 @@ public class TestRewriteValve extends To
}
@Test
+ public void testQueryStringRemove() throws Exception {
+ doTestRewrite("RewriteRule ^/b/(.*) /c/$1?", "/b/d?=1", "/c/d", null);
+ }
+
+ @Test
public void testNonAsciiQueryString() throws Exception {
- doTestRewrite("RewriteRule ^/b/(.*) /c?$1",
"/b/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95",
+ doTestRewrite("RewriteRule ^/b/(.*) /c?$1",
+ "/b/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95",
"/c", "id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95");
}
@Test
- public void testNonAsciiQueryStringAndRedirectPath() throws Exception {
- doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/$1?$2",
"/b/%E5%9C%A8%E7%BA%BF/id=%E6%B5%8B%E8%AF%95",
+ public void testNonAsciiQueryStringAndPath() throws Exception {
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/$1?$2",
+ "/b/%E5%9C%A8%E7%BA%BF/id=%E6%B5%8B%E8%AF%95",
"/c/%E5%9C%A8%E7%BA%BF", "id=%E6%B5%8B%E8%AF%95");
}
+ @Test
+ public void testNonAsciiQueryStringAndRedirect() throws Exception {
+ doTestRewrite("RewriteRule ^/b/(.*) /c?$1 [R]",
+ "/b/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95",
+ "/c", "id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95");
+ }
+
+
+ @Test
+ public void testNonAsciiQueryStringAndPathAndRedirect() throws Exception {
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/$1?$2 [R]",
+ "/b/%E5%9C%A8%E7%BA%BF/id=%E6%B5%8B%E8%AF%95",
+ "/c/%E5%9C%A8%E7%BA%BF", "id=%E6%B5%8B%E8%AF%95");
+ }
+
+
+ @Test
+ public void testNonAsciiQueryStringWithB() throws Exception {
+ doTestRewrite("RewriteRule ^/b/(.*)/id=(.*) /c?filename=$1&id=$2 [B]",
+ "/b/file01/id=%E5%9C%A8%E7%BA%BF%E6%B5%8B%E8%AF%95", "/c",
+
"filename=file01&id=%25E5%259C%25A8%25E7%25BA%25BF%25E6%25B5%258B%25E8%25AF%2595");
+ }
+
+
+ @Test
+ public void testNonAsciiQueryStringAndPathAndRedirectWithB() throws
Exception {
+ // Note the double encoding of the result (httpd produces the same
result)
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*)/id=(.*)
/c/$1?filename=$2&id=$3 [B,R]",
+ "/b/%E5%9C%A8%E7%BA%BF/file01/id=%E6%B5%8B%E8%AF%95",
+ "/c/%25E5%259C%25A8%25E7%25BA%25BF",
+ "filename=file01&id=%25E6%25B5%258B%25E8%25AF%2595");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsNone() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1",
"id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1",
"id=%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsR() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1",
"id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1",
"id=%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE",
"/c/\u00C2\u00A1\u00C2\u00A1", "id=\u00C2\u00A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRBNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/\u00C2\u00A1%C2%A1",
"id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsBQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B,QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1",
+ "id=%25C2%25A1&di=%C2%AE");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1",
+ "id=%C2%A1&di=%C2%AE");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRBQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%25C2%25A1",
+ "id=%25C2%25A1&di=%C2%AE");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRNEQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE,QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/\u00C2\u00A1\u00C2\u00A1",
+ "id=\u00C2\u00A1&di=\u00C2\u00AE");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsRBNEQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE,QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/\u00C2\u00A1%C2%A1",
+ "id=%C2%A1&di=\u00C2\u00AE");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsNone() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1",
+ "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [B]",
+ "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsR() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R]",
+ "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsRB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B]",
+ "/b/%C2%A1?id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsRNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,NE]",
+ "/b/%C2%A1?id=%C2%A1", "/c/\u00C2\u00A1\u00C2\u00A1",
"id=\u00C2\u00A1");
+ }
+
+
+ @Test
+ public void testUtf8WithOriginalQsFlagsRBNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B,NE]",
+ "/b/%C2%A1?id=%C2%A1", "/c/\u00C2\u00A1%C2%A1",
"id=\u00C2\u00A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsNone() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2",
+ "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [B]",
+ "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsR() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R]",
+ "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithBothQsFlagsQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [QSA]",
+ "/b/%C2%A1/id=%C2%A1?di=%C2%AE", "/c/%C2%A1%C2%A1",
+ "id=%C2%A1&di=%C2%AE");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsRB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B]",
+ "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%25C2%25A1", "id=%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsRNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,NE]",
+ "/b/%C2%A1/id=%C2%A1", "/c/\u00C2\u00A1\u00C2\u00A1",
"id=\u00C2\u00A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsRBNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [R,B,NE]",
+ "/b/%C2%A1/id=%C2%A1", "/c/\u00C2\u00A1%C2%A1", "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8WithRewriteQsFlagsQSA() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*)/(.*) /c/\u00A1$1?$2 [QSA]",
+ "/b/%C2%A1/id=%C2%A1", "/c/%C2%A1%C2%A1",
+ "id=%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsNone() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1", "/b/%C2%A1",
"/c/%C2%A1%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [B]", "/b/%C2%A1",
"/c/%C2%A1%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsR() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R]", "/b/%C2%A1",
"/c/%C2%A1%C2%A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsRB() throws Exception {
+ // Note %C2%A1 == \u00A1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B]", "/b/%C2%A1",
"/c/%C2%A1%25C2%25A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsRNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,NE]",
+ "/b/%C2%A1", "/c/\u00C2\u00A1\u00C2\u00A1");
+ }
+
+
+ @Test
+ public void testUtf8FlagsRBNE() throws Exception {
+ // Note %C2%A1 == \u00A1
+ // Failing to escape the redirect means UTF-8 bytes in the Location
+ // header which will be treated as if they are ISO-8859-1
+ doTestRewrite("RewriteRule ^/b/(.*) /c/\u00A1$1 [R,B,NE]",
+ "/b/%C2%A1", "/c/\u00C2\u00A1%C2%A1");
+ }
@Test
@@ -153,6 +474,15 @@ public class TestRewriteValve extends To
}
+ @Test
+ public void testHostRewrite() throws Exception {
+ // Based on report from users list that ':' was encoded and breaking
+ // the redirect
+ doTestRewrite("RewriteRule ^/b(.*)
http://%{HTTP_HOST}:%{SERVER_PORT}/a$1 [R]",
+ "/b/%255A", "/a/%255A");
+ }
+
+
private void doTestRewrite(String config, String request, String
expectedURI) throws Exception {
doTestRewrite(config, request, expectedURI, null);
}
@@ -199,8 +529,8 @@ public class TestRewriteValve extends To
}
if (expectedAttributeValue != null) {
- String attrbuteValue = requestDesc.getAttribute("X-Test");
- Assert.assertEquals(expectedAttributeValue, attrbuteValue);
+ String attributeValue = requestDesc.getAttribute("X-Test");
+ Assert.assertEquals(expectedAttributeValue, attributeValue);
}
}
}
Modified: tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml?rev=1761727&r1=1761726&r2=1761727&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml Wed Sep 21 13:27:10 2016
@@ -53,6 +53,13 @@
class path entries. (markt)
</add>
<fix>
+ <bug>60013</bug>: Refactor the previous fix to align the behaviour of
+ the Rewrite Valve with mod_rewite. As part of this, provide an
+ implementation for the <code>B</code> and <code>NE</code> flags and
+ improve the handling for the <code>QSA</code> flag. Includes multiple
+ test cases by Santhana Preethiand a patch by Tiago Oliveira. (markt)
+ </fix>
+ <fix>
<bug>60116</bug>: Fix a problem with the rewrite valve that caused back
references evaluated in conditions to be forced to lower case when
using
the <code>NC</code> flag. (markt)
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