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Posted to dev@tomcat.apache.org by ma...@apache.org on 2010/07/16 12:23:05 UTC

svn commit: r964732 - in /tomcat/tc6.0.x/trunk: ./ conf/ java/org/apache/catalina/ssi/ webapps/docs/

Author: markt
Date: Fri Jul 16 10:23:04 2010
New Revision: 964732

URL: http://svn.apache.org/viewvc?rev=964732&view=rev
Log:
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=48960
Disable exec in SSI by default and provide new option to enable it

Modified:
    tomcat/tc6.0.x/trunk/   (props changed)
    tomcat/tc6.0.x/trunk/STATUS.txt
    tomcat/tc6.0.x/trunk/conf/web.xml
    tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIFilter.java
    tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIProcessor.java
    tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIServlet.java
    tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
    tomcat/tc6.0.x/trunk/webapps/docs/ssi-howto.xml

Propchange: tomcat/tc6.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Fri Jul 16 10:23:04 2010
@@ -1 +1 @@
-/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
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 ,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701
+/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
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 ,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,963868

Modified: tomcat/tc6.0.x/trunk/STATUS.txt
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/STATUS.txt?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/STATUS.txt (original)
+++ tomcat/tc6.0.x/trunk/STATUS.txt Fri Jul 16 10:23:04 2010
@@ -171,12 +171,6 @@ PATCHES PROPOSED TO BACKPORT:
   +1: markt, kkolinko
   -1: 
 
-* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=48960
-  Disable exec in SSI by default and provide new option to enable it
-  http://svn.apache.org/viewvc?rev=963868&view=rev
-  +1: markt, kkolinko, kfujino
-  -1: 
-
 * Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=49598
   When updating the session cookie, correctly replace the Set-Cookie header
   This was a regression in 6.0.28 in the fix for

Modified: tomcat/tc6.0.x/trunk/conf/web.xml
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/conf/web.xml?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/conf/web.xml (original)
+++ tomcat/tc6.0.x/trunk/conf/web.xml Fri Jul 16 10:23:04 2010
@@ -292,6 +292,8 @@
   <!--                                                                      -->
   <!--   outputEncoding      The encoding to use for the page that results  -->
   <!--                       from the SSI processing. [UTF-8]               -->
+  <!--                                                                      -->
+  <!--   allowExec           Is use of the exec command enabled? [false]    -->
 
 <!--
     <servlet>
@@ -448,6 +450,8 @@
   <!--                       Should "virtual" paths be interpreted as       -->
   <!--                       relative to the context root, instead of       -->
   <!--                       the server root?  (0=false, 1=true) [0]        -->
+  <!--                                                                      -->
+  <!--   allowExec           Is use of the exec command enabled? [false]    -->
 
 <!--
     <filter>

Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIFilter.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIFilter.java?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIFilter.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIFilter.java Fri Jul 16 10:23:04 2010
@@ -59,6 +59,8 @@ public class SSIFilter implements Filter
 	/** default pattern for ssi filter content type matching */
 	protected Pattern shtmlRegEx =
         Pattern.compile("text/x-server-parsed-html(;.*)?");
+	/** Allow exec (normally blocked for security) */
+	protected boolean allowExec = false;
 
 
     //----------------- Public methods.
@@ -87,6 +89,8 @@ public class SSIFilter implements Filter
         if (config.getInitParameter("expires") != null)
             expires = Long.valueOf(config.getInitParameter("expires"));
 
+        allowExec = Boolean.parseBoolean(config.getInitParameter("allowExec"));
+
         if (debug > 0)
             config.getServletContext().log(
                     "SSIFilter.init() SSI invoker started with 'debug'=" + debug);
@@ -125,7 +129,7 @@ public class SSIFilter implements Filter
                 new SSIServletExternalResolver(config.getServletContext(), req,
                         res, isVirtualWebappRelative, debug, encoding);
             SSIProcessor ssiProcessor = new SSIProcessor(ssiExternalResolver,
-                    debug);
+                    debug, allowExec);
             
             // prepare readers/writers
             Reader reader =

Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIProcessor.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIProcessor.java?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIProcessor.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIProcessor.java Fri Jul 16 10:23:04 2010
@@ -42,11 +42,14 @@ public class SSIProcessor {
     protected SSIExternalResolver ssiExternalResolver;
     protected HashMap commands = new HashMap();
     protected int debug;
+    protected final boolean allowExec;
 
 
-    public SSIProcessor(SSIExternalResolver ssiExternalResolver, int debug) {
+    public SSIProcessor(SSIExternalResolver ssiExternalResolver, int debug,
+            boolean allowExec) {
         this.ssiExternalResolver = ssiExternalResolver;
         this.debug = debug;
+        this.allowExec = allowExec;
         addBuiltinCommands();
     }
 
@@ -54,7 +57,9 @@ public class SSIProcessor {
     protected void addBuiltinCommands() {
         addCommand("config", new SSIConfig());
         addCommand("echo", new SSIEcho());
-        addCommand("exec", new SSIExec());
+        if (allowExec) {
+            addCommand("exec", new SSIExec());
+        }
         addCommand("include", new SSIInclude());
         addCommand("flastmod", new SSIFlastmod());
         addCommand("fsize", new SSIFsize());

Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIServlet.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIServlet.java?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIServlet.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/ssi/SSIServlet.java Fri Jul 16 10:23:04 2010
@@ -54,6 +54,8 @@ public class SSIServlet extends HttpServ
     protected String inputEncoding = null;
     /** Output encoding. If not specified, uses platform default */
     protected String outputEncoding = "UTF-8";
+    /** Allow exec (normally blocked for security) */
+    protected boolean allowExec = false;
 
 
     //----------------- Public methods.
@@ -81,6 +83,9 @@ public class SSIServlet extends HttpServ
         if (getServletConfig().getInitParameter("outputEncoding") != null)
             outputEncoding = getServletConfig().getInitParameter("outputEncoding");
         
+        allowExec = Boolean.parseBoolean(
+                getServletConfig().getInitParameter("allowExec"));
+
         if (debug > 0)
             log("SSIServlet.init() SSI invoker started with 'debug'=" + debug);
 
@@ -176,7 +181,7 @@ public class SSIServlet extends HttpServ
             new SSIServletExternalResolver(getServletContext(), req, res,
                     isVirtualWebappRelative, debug, inputEncoding);
         SSIProcessor ssiProcessor = new SSIProcessor(ssiExternalResolver,
-                debug);
+                debug, allowExec);
         PrintWriter printWriter = null;
         StringWriter stringWriter = null;
         if (buffered) {

Modified: tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Fri Jul 16 10:23:04 2010
@@ -42,6 +42,11 @@
 <section name="Tomcat 6.0.29 (jfclere)">
   <subsection name="Catalina">
     <changelog>
+      <add>
+        <bug>48960</bug>: Add a new option to the SSI Servlet and SSI Filter to
+        allow the disabling of the <code>exec</code> command. This is now
+        disabled by default. Based on a patch by Yair Lenga. (markt)
+      </add>
       <fix>
         <bug>49551</bug>: Allow default context.xml location to be specified
         using an absolute path. (markt)

Modified: tomcat/tc6.0.x/trunk/webapps/docs/ssi-howto.xml
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/ssi-howto.xml?rev=964732&r1=964731&r2=964732&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/ssi-howto.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/ssi-howto.xml Fri Jul 16 10:23:04 2010
@@ -105,6 +105,8 @@ resources if one cannot be determined fr
 the default platform encoding.</li>
 <li><strong>outputEncoding</strong> - The encoding to be used for the result
 of the SSI processing. Default is UTF-8.</li>
+<li><strong>allowExec</strong> - Is the exec command enabled? Default is
+false.</li>
 </ul>
 </p>
 
@@ -128,6 +130,8 @@ evaluated for every request.</li>
 <li><strong>isVirtualWebappRelative</strong> - Should "virtual" SSI directive
 paths be interpreted as relative to the context root, instead of the server
 root? (0=false, 1=true) Default 0 (false).</li>
+<li><strong>allowExec</strong> - Is the exec command enabled? Default is
+false.</li>
 </ul>
 </p>
 



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