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Posted to dev@tomcat.apache.org by ma...@apache.org on 2017/04/24 12:09:00 UTC
svn commit: r1792461 - in /tomcat/tc8.5.x/trunk: ./
java/org/apache/catalina/manager/ java/org/apache/catalina/ssi/
java/org/apache/catalina/util/ java/org/apache/catalina/valves/rewrite/
webapps/docs/
Author: markt
Date: Mon Apr 24 12:09:00 2017
New Revision: 1792461
URL: http://svn.apache.org/viewvc?rev=1792461&view=rev
Log:
Review those places where Tomcat re-encodes a URI or URI component and ensure that that correct encoding (path differs from query string) is applied and that the encoding is applied consistently.
Modified:
tomcat/tc8.5.x/trunk/ (props changed)
tomcat/tc8.5.x/trunk/java/org/apache/catalina/manager/HTMLManagerServlet.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/ssi/SSIMediator.java
tomcat/tc8.5.x/trunk/java/org/apache/catalina/util/URLEncoder.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/webapps/docs/changelog.xml
Propchange: tomcat/tc8.5.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Mon Apr 24 12:09:00 2017
@@ -1 +1 @@
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Modified: tomcat/tc8.5.x/trunk/java/org/apache/catalina/manager/HTMLManagerServlet.java
URL: http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/manager/HTMLManagerServlet.java?rev=1792461&r1=1792460&r2=1792461&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/catalina/manager/HTMLManagerServlet.java (original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/catalina/manager/HTMLManagerServlet.java Mon Apr 24 12:09:00 2017
@@ -78,7 +78,6 @@ public final class HTMLManagerServlet ex
private static final long serialVersionUID = 1L;
- static final URLEncoder URL_ENCODER;
static final String APPLICATION_MESSAGE = "message";
static final String APPLICATION_ERROR = "error";
@@ -86,12 +85,6 @@ public final class HTMLManagerServlet ex
static final String sessionDetailJspPath = "/WEB-INF/jsp/sessionDetail.jsp";
static final String connectorCiphersJspPath = "/WEB-INF/jsp/connectorCiphers.jsp";
- static {
- URL_ENCODER = new URLEncoder();
- // '/' should not be encoded in context paths
- URL_ENCODER.addSafeCharacter('/');
- }
-
private boolean showProxySessions = false;
// --------------------------------------------------------- Public Methods
@@ -430,10 +423,10 @@ public final class HTMLManagerServlet ex
StringBuilder tmp = new StringBuilder();
tmp.append("path=");
- tmp.append(URL_ENCODER.encode(displayPath, "UTF-8"));
+ tmp.append(URLEncoder.DEFAULT.encode(displayPath, "UTF-8"));
if (ctxt.getWebappVersion().length() > 0) {
tmp.append("&version=");
- tmp.append(URL_ENCODER.encode(ctxt.getWebappVersion(), "UTF-8"));
+ tmp.append(URLEncoder.DEFAULT.encode(ctxt.getWebappVersion(), "UTF-8"));
}
String pathVersion = tmp.toString();
@@ -445,8 +438,8 @@ public final class HTMLManagerServlet ex
}
args = new Object[7];
- args[0] = "<a href=\"" + URL_ENCODER.encode(contextPath + "/", "UTF-8")
- + "\">" + RequestUtil.filter(displayPath) + "</a>";
+ args[0] = "<a href=\"" + URLEncoder.DEFAULT.encode(contextPath + "/", "UTF-8") +
+ "\">" + RequestUtil.filter(displayPath) + "</a>";
if ("".equals(ctxt.getWebappVersion())) {
args[1] = noVersion;
} else {
Modified: tomcat/tc8.5.x/trunk/java/org/apache/catalina/ssi/SSIMediator.java
URL: http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/ssi/SSIMediator.java?rev=1792461&r1=1792460&r2=1792461&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/catalina/ssi/SSIMediator.java (original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/catalina/ssi/SSIMediator.java Mon Apr 24 12:09:00 2017
@@ -43,7 +43,6 @@ public class SSIMediator {
protected static final String DEFAULT_CONFIG_ERR_MSG = "[an error occurred while processing this directive]";
protected static final String DEFAULT_CONFIG_TIME_FMT = "%A, %d-%b-%Y %T %Z";
protected static final String DEFAULT_CONFIG_SIZE_FMT = "abbrev";
- protected static final URLEncoder urlEncoder;
protected String configErrMsg = DEFAULT_CONFIG_ERR_MSG;
protected String configTimeFmt = DEFAULT_CONFIG_TIME_FMT;
protected String configSizeFmt = DEFAULT_CONFIG_SIZE_FMT;
@@ -52,22 +51,6 @@ public class SSIMediator {
protected final long lastModifiedDate;
protected Strftime strftime;
protected final SSIConditionalState conditionalState = new SSIConditionalState();
- static {
- //We try to encode only the same characters that apache does
- urlEncoder = new URLEncoder();
- urlEncoder.addSafeCharacter(',');
- urlEncoder.addSafeCharacter(':');
- urlEncoder.addSafeCharacter('-');
- urlEncoder.addSafeCharacter('_');
- urlEncoder.addSafeCharacter('.');
- urlEncoder.addSafeCharacter('*');
- urlEncoder.addSafeCharacter('/');
- urlEncoder.addSafeCharacter('!');
- urlEncoder.addSafeCharacter('~');
- urlEncoder.addSafeCharacter('\'');
- urlEncoder.addSafeCharacter('(');
- urlEncoder.addSafeCharacter(')');
- }
public SSIMediator(SSIExternalResolver ssiExternalResolver,
@@ -296,7 +279,7 @@ public class SSIMediator {
protected String encode(String value, String encoding) {
String retVal = null;
if (encoding.equalsIgnoreCase("url")) {
- retVal = urlEncoder.encode(value, "UTF-8");
+ retVal = URLEncoder.DEFAULT.encode(value, "UTF-8");
} else if (encoding.equalsIgnoreCase("none")) {
retVal = value;
} else if (encoding.equalsIgnoreCase("entity")) {
Modified: tomcat/tc8.5.x/trunk/java/org/apache/catalina/util/URLEncoder.java
URL: http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/util/URLEncoder.java?rev=1792461&r1=1792460&r2=1792461&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/catalina/util/URLEncoder.java (original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/catalina/util/URLEncoder.java Mon Apr 24 12:09:00 2017
@@ -39,17 +39,69 @@ public class URLEncoder {
'A', 'B', 'C', 'D', 'E', 'F'};
public static final URLEncoder DEFAULT = new URLEncoder();
+ public static final URLEncoder QUERY = new URLEncoder();
+
static {
- DEFAULT.addSafeCharacter('~');
+ /*
+ * Encoder for URI paths, so from the spec:
+ *
+ * pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
+ *
+ * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
+ *
+ * sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
+ * / "*" / "+" / "," / ";" / "="
+ */
+ // ALPHA and DIGIT are always treated as safe characters
+ // Add the remaining unreserved characters
DEFAULT.addSafeCharacter('-');
- DEFAULT.addSafeCharacter('_');
DEFAULT.addSafeCharacter('.');
+ DEFAULT.addSafeCharacter('_');
+ DEFAULT.addSafeCharacter('~');
+ // Add the sub-delims
+ DEFAULT.addSafeCharacter('!');
+ DEFAULT.addSafeCharacter('$');
+ DEFAULT.addSafeCharacter('&');
+ DEFAULT.addSafeCharacter('\'');
+ DEFAULT.addSafeCharacter('(');
+ DEFAULT.addSafeCharacter(')');
DEFAULT.addSafeCharacter('*');
+ DEFAULT.addSafeCharacter('+');
+ DEFAULT.addSafeCharacter(',');
+ DEFAULT.addSafeCharacter(';');
+ DEFAULT.addSafeCharacter('=');
+ // Add the remaining literals
+ DEFAULT.addSafeCharacter(':');
+ DEFAULT.addSafeCharacter('@');
+ // Add '/' so it isn't encoded when we encode a path
DEFAULT.addSafeCharacter('/');
+
+ /*
+ * Encoder for query strings
+ * https://www.w3.org/TR/html5/forms.html#application/x-www-form-urlencoded-encoding-algorithm
+ * 0x20 ' ' -> '+'
+ * 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, 0x61 to 0x7A as-is
+ * '*', '-', '.', '0' to '9', 'A' to 'Z', '_', 'a' to 'z'
+ * Also '=' and '&' are not encoded
+ * Everything else %nn encoded
+ */
+ // Special encoding for space
+ QUERY.setEncodeSpaceAsPlus(true);
+ // Alpha and digit are safe by default
+ // Add the other permitted characters
+ QUERY.addSafeCharacter('*');
+ QUERY.addSafeCharacter('-');
+ QUERY.addSafeCharacter('.');
+ QUERY.addSafeCharacter('_');
+ QUERY.addSafeCharacter('=');
+ QUERY.addSafeCharacter('&');
}
//Array containing the safe characters set.
- protected final BitSet safeCharacters = new BitSet(256);
+ private final BitSet safeCharacters = new BitSet(256);
+
+ private boolean encodeSpaceAsPlus = false;
+
public URLEncoder() {
for (char i = 'a'; i <= 'z'; i++) {
@@ -63,11 +115,17 @@ public class URLEncoder {
}
}
+
public void addSafeCharacter( char c ) {
safeCharacters.set( c );
}
+ public void setEncodeSpaceAsPlus(boolean encodeSpaceAsPlus) {
+ this.encodeSpaceAsPlus = encodeSpaceAsPlus;
+ }
+
+
/**
* URL encodes the provided path using UTF-8.
*
@@ -107,6 +165,8 @@ public class URLEncoder {
int c = path.charAt(i);
if (safeCharacters.get(c)) {
rewrittenPath.append((char)c);
+ } else if (encodeSpaceAsPlus && c == ' ') {
+ rewrittenPath.append('+');
} else {
// convert to external encoding before hex conversion
try {
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=1792461&r1=1792460&r2=1792461&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 Mon Apr 24 12:09:00 2017
@@ -55,45 +55,6 @@ import org.apache.tomcat.util.http.Reque
public class RewriteValve extends ValveBase {
- static URLEncoder ENCODER = new URLEncoder();
- static {
- /*
- * 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('/');
- }
-
-
/**
* The rewrite rules that the valve will use.
*/
@@ -399,7 +360,7 @@ public class RewriteValve extends ValveB
}
StringBuffer urlStringEncoded =
- new StringBuffer(ENCODER.encode(urlStringDecoded, uriEncoding));
+ new StringBuffer(URLEncoder.DEFAULT.encode(urlStringDecoded, uriEncoding));
if (originalQueryStringEncoded != null &&
originalQueryStringEncoded.length() > 0) {
if (rewrittenQueryStringDecoded == null) {
@@ -409,8 +370,8 @@ public class RewriteValve extends ValveB
if (qsa) {
// if qsa is specified append the query
urlStringEncoded.append('?');
- urlStringEncoded.append(
- ENCODER.encode(rewrittenQueryStringDecoded, uriEncoding));
+ urlStringEncoded.append(URLEncoder.QUERY.encode(
+ rewrittenQueryStringDecoded, uriEncoding));
urlStringEncoded.append('&');
urlStringEncoded.append(originalQueryStringEncoded);
} else if (index == urlStringEncoded.length() - 1) {
@@ -419,14 +380,14 @@ public class RewriteValve extends ValveB
urlStringEncoded.deleteCharAt(index);
} else {
urlStringEncoded.append('?');
- urlStringEncoded.append(
- ENCODER.encode(rewrittenQueryStringDecoded, uriEncoding));
+ urlStringEncoded.append(URLEncoder.QUERY.encode(
+ rewrittenQueryStringDecoded, uriEncoding));
}
}
} else if (rewrittenQueryStringDecoded != null) {
urlStringEncoded.append('?');
urlStringEncoded.append(
- ENCODER.encode(rewrittenQueryStringDecoded, uriEncoding));
+ URLEncoder.QUERY.encode(rewrittenQueryStringDecoded, uriEncoding));
}
// Insert the context if
@@ -524,7 +485,7 @@ public class RewriteValve extends ValveB
// This is neither decoded nor normalized
chunk.append(contextPath);
}
- chunk.append(ENCODER.encode(urlStringDecoded, uriEncoding));
+ chunk.append(URLEncoder.DEFAULT.encode(urlStringDecoded, uriEncoding));
request.getCoyoteRequest().requestURI().toChars();
// Decoded and normalized URI
// Rewriting may have denormalized the URL
@@ -543,7 +504,7 @@ public class RewriteValve extends ValveB
request.getCoyoteRequest().queryString().setString(null);
chunk = request.getCoyoteRequest().queryString().getCharChunk();
chunk.recycle();
- chunk.append(ENCODER.encode(queryStringDecoded, uriEncoding));
+ chunk.append(URLEncoder.QUERY.encode(queryStringDecoded, uriEncoding));
if (qsa && originalQueryStringEncoded != null &&
originalQueryStringEncoded.length() > 0) {
chunk.append('&');
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=1792461&r1=1792460&r2=1792461&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 Mon Apr 24 12:09:00 2017
@@ -20,6 +20,8 @@ import java.util.ArrayList;
import java.util.Map;
import java.util.regex.Matcher;
+import org.apache.catalina.util.URLEncoder;
+
public class Substitution {
public abstract class SubstitutionElement {
@@ -49,7 +51,7 @@ public class Substitution {
// 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(result, resolver.getUriEncoding());
+ return URLEncoder.DEFAULT.encode(result, resolver.getUriEncoding());
} else {
return result;
}
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=1792461&r1=1792460&r2=1792461&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml Mon Apr 24 12:09:00 2017
@@ -54,6 +54,15 @@
</add>
</changelog>
</subsection>
+ <subsection name="Catalina">
+ <changelog>
+ <fix>
+ Review those places where Tomcat re-encodes a URI or URI component and
+ ensure that that correct encoding (path differs from query string) is
+ applied and that the encoding is applied consistently. (markt)
+ </fix>
+ </changelog>
+ </subsection>
<subsection name="Jasper">
<changelog>
<fix>
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